Stent-in-stent technique and endoscopic resection of granulation tissue to remove a migrated metal duodenal stent embedded in the colon - Yang, Dong-Hoon; Seo, Myeongsook; Lee, Hyo Jeong; Park, Sang Hyoung; Kim, Kyung-Jo; Ye, Byong Duk; Byeon, Jeong-Sik; Myung, Seung-Jae; Yang, Suk-Kyun (Endoscopy, 2014)