PEI-MING HUANGHSIU-PO WANGCHIUNG-NIEN CHENChen L.-H.Lee Y.-C.2021-01-152021-01-1520060013-726Xhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-33645064520&doi=10.1055%2fs-2006-925212&partnerID=40&md5=06866ecf6b5fc417d84de3a23bc46bcfhttps://scholars.lib.ntu.edu.tw/handle/123456789/541178Impaction of an upper gastrointestinal endoscope in the distal esophagus: Alternative method of removal by double endoscopy without fluoroscopic assistancejournal article10.1055/s-2006-925212165286662-s2.0-33645064520