Correction: Diagnosis and management of acute lower gastrointestinal bleeding: European Society of Gastrointestinal Endoscopy (ESGE) Guideline - Triantafyllou, Konstantinos; Gkolfakis, Paraskevas; Gralnek, Ian M.; Oakland, Kathryn; Manes, Gianpiero; Radaelli, Franco; Awadie, Halim; Camus Duboc, Marine; Christodoulou, Dimitrios; Fedorov, Evgeny; Guy, Richard J.; Hollenbach, Marcus; Ibrahim, Mostafa; Neeman, Ziv; Regge, Daniele; Rodriguez de Santiago, Enrique; Tham, Tony C.; Thelin-Schmidt, Peter; van Hooft, Jeanin E. (Endoscopy, 2021)