DOI:
        10.1055/s-00025476
      
      
        Endoscopy International Open
      
      
        
          
            Issue 05 ·
           Volume 09 ·
           May 2021
            
          
           DOI: 10.1055/s-011-50778 
          
          
          
  
    
      
    
  
  
        
        
  
  
    
  
  
  
  
  
    
  
  
  
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
  
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
        
          
            
              
              
              
                
                  
                    
                    
                      
                          
                          
                            
                            Original article
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                            
                          
                          
                          
                          
  
  
    
      
        E653
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Nomura, Tatsuma; 
              
            
          
            
              
              Hayashi, Yoshikazu; 
              
            
          
            
              
              Morikawa, Takaaki; 
              
            
          
            
              
              Okada, Masahiro; 
              
            
          
            
              
              Fukuda, Hisashi; 
              
            
          
            
              
              Takezawa, Takahito; 
              
            
          
            
              
              Sunada, Keijiro; 
              
            
          
            
              
              Lefor, Alan Kawarai; 
              
            
          
            
              
              Yamamoto, Hironori: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E659
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Tashima, Tomoaki; 
              
            
          
            
              
              Ryozawa, Shomei; 
              
            
          
            
              
              Tanisaka, Yuki; 
              
            
          
            
              
              Fujita, Akashi; 
              
            
          
            
              
              Miyaguchi, Kazuya; 
              
            
          
            
              
              Ogawa, Tomoya; 
              
            
          
            
              
              Mizuide, Masafumi; 
              
            
          
            
              
              Mashimo, Yumi; 
              
            
          
            
              
              Kawasaki, Tomonori; 
              
            
          
            
              
              Yasuda, Masami: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E667
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Bilal, Mohammad; 
              
            
          
            
              
              Chandnani, Madhuri; 
              
            
          
            
              
              McDonald, Nicholas M.; 
              
            
          
            
              
              Miller, Corey S.; 
              
            
          
            
              
              Saperia, James; 
              
            
          
            
              
              Wadhwa, Vaibhav; 
              
            
          
            
              
              Singh, Shailendra; 
              
            
          
            
              
              Cohen, Jonah M.; 
              
            
          
            
              
              Berzin, Tyler M.; 
              
            
          
            
              
              Sawhney, Mandeep S.; 
              
            
          
            
              
              Pleskow, Douglas K.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E674
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Matsuzaki, Ippei; 
              
            
          
            
              
              Ebara, Takeshi; 
              
            
          
            
              
              Tsunemi, Mafu; 
              
            
          
            
              
              Hatta, Yoshifumi; 
              
            
          
            
              
              Yamamoto, Kojiro; 
              
            
          
            
              
              Baba, Akemi; 
              
            
          
            
              
              Hattori, Masashi; 
              
            
          
            
              
              Nakamura, Masanao; 
              
            
          
            
              
              Fujishiro, Mitsuhiro: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E684
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Alaoui, Ahmed Amine; 
              
            
          
            
              
              Oumedjbeur, Kussil; 
              
            
          
            
              
              Djinbachian, Roupen; 
              
            
          
            
              
              Marchand, Étienne; 
              
            
          
            
              
              Marques, Paola N.; 
              
            
          
            
              
              Bouin, Mickael; 
              
            
          
            
              
              Bouchard, Simon; 
              
            
          
            
              
              von Renteln, Daniel: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
        
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E693
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Ali-Mohamad, Nabil; 
              
            
          
            
              
              Cau, Massimo; 
              
            
          
            
              
              Baylis, James; 
              
            
          
            
              
              Zenova, Veronika; 
              
            
          
            
              
              Semple, Hugh; 
              
            
          
            
              
              Beckett, Andrew; 
              
            
          
            
              
              McFadden, Andrew; 
              
            
          
            
              
              Donnellan, Fergal; 
              
            
          
            
              
              Kastrup, Christian: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E701
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Somerville, Carter C.; 
              
            
          
            
              
              Shoaib, Muhammad; 
              
            
          
            
              
              Kuschner, Cyrus E.; 
              
            
          
            
              
              Brune, Zarina; 
              
            
          
            
              
              Trindade, Arvind J.; 
              
            
          
            
              
              Benias, Petros C.; 
              
            
          
            
              
              Becker, Lance B.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E706
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Saade, Rayan; 
              
            
          
            
              
              Tsang, Tyler; 
              
            
          
            
              
              Kmeid, Michel; 
              
            
          
            
              
              Miller, David; 
              
            
          
            
              
              Fu, Zhiyan; 
              
            
          
            
              
              Litynski, James; 
              
            
          
            
              
              Young, Patrick; 
              
            
          
            
              
              Anderson, Joseph C.; 
              
            
          
            
              
              Lee, Hwajeong; 
              
            
          
            
              
              Tadros, Micheal: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
        
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E716
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Smith, Samuel C.L.; 
              
            
          
            
              
              Siau, Keith; 
              
            
          
            
              
              Cannatelli, Rosanna; 
              
            
          
            
              
              Antonelli, Giulio; 
              
            
          
            
              
              Shivaji, Uday N.; 
              
            
          
            
              
              Ghosh, Subrata; 
              
            
          
            
              
              Saltzman, John R.; 
              
            
          
            
              
              Hassan, Cesare; 
              
            
          
            
              
              Iacucci, Marietta: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
        
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E727
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Omae, Masami; 
              
            
          
            
              
              Hagström, Hannes; 
              
            
          
            
              
              Ndegwa, Nelson; 
              
            
          
            
              
              Vieth, Michael; 
              
            
          
            
              
              Wang, Naining; 
              
            
          
            
              
              Vujasinovic, Miroslav; 
              
            
          
            
              
              Baldaque-Silva, Francisco: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E735
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Desai, Pankaj; 
              
            
          
            
              
              Kabrawala, Mayank; 
              
            
          
            
              
              Patel, Chintan; 
              
            
          
            
              
              Arora, Priya; 
              
            
          
            
              
              Mehta, Rajiv; 
              
            
          
            
              
              Nandwani, Subhash; 
              
            
          
            
              
              Kalra, Parika; 
              
            
          
            
              
              Prajapati, Ritesh; 
              
            
          
            
              
              Patel, Nisharg; 
              
            
          
            
              
              Parekh, Krishna: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E741
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Podlasek, Jeremi; 
              
            
          
            
              
              Heesch, Mateusz; 
              
            
          
            
              
              Podlasek, Robert; 
              
            
          
            
              
              Kilisiński, Wojciech; 
              
            
          
            
              
              Filip, Rafał: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E749
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Tringali, Andrea; 
              
            
          
            
              
              Matteo, Maria Valeria; 
              
            
          
            
              
              Orlandini, Beatrice; 
              
            
          
            
              
              Barbaro, Federico; 
              
            
          
            
              
              Perri, Vincenzo; 
              
            
          
            
              
              Zhang, Qianqian; 
              
            
          
            
              
              Ricci, Riccardo; 
              
            
          
            
              
              Costamagna, Guido: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                            
                            VidEIO
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                            
                          
                          
                          
                          
  
  
    
      
        E699
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Kuraoka, Naosuke; 
              
            
          
            
              
              Hashimoto, Satoru; 
              
            
          
            
              
              Matsui, Shigeru: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                            
                            Editorial
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                            
                          
                          
                          
                          
  
  
    
      
        E713
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Pioche, Mathieu; 
              
            
          
            
              
              Cotte, Eddy; 
              
            
          
            
              
              Hassan, Cesare: