1Sungjoon L,Chun HJ,Jeen TY,et al.Removal of upper gastrointestinal sharp and pointed foreign bodies using endoscopic protector hood[].Gastrointestinal Endoscopy.1999
2Lillian SK,Toan N,Jason D,et al.Modification of latex glove for the safe endoscopic removal of a sharp gastric foreign body[].Gastrointestinal Endoscopy.2000
