3Lazzaroni M, Bianchi Porro G. Preparation, premedication, and surveillance[J]. Endoscopy, 2005, 37(2):101-109.
4Gundling F, Seidl H, Stark T, et al. Management of im- pacted foreign bodies in the upper gastrointestinal tract in adult patients-results of a retrospective case series. Z Gastroenterol, 2012, 50: 1287-1291.
5Chen TI, Wu HF, Shi Q, et al. Endoscopic manage- ment of impacted esophageal foreign bodies. Dis Esopha- gus, 2013, 26: 799-806.
6McNeil1 MB, Sperry SL, Crockett SD, et al. Epidemiol- ogy and management of oesophageal coin impaction in children. Dig Liver Dis, 2012, 44: 482-486.
7Chiu YH, Hou SK, Chen SC, et al. Diagnosis and endo- scopic management of upper gastrointestinal foreign bodies. Am J Med Sci, 2012, 343: 192-195.
8Sung SH,Jeon SW,Son HS. Factors predictive of risk for complications in patients with oesophageal foreign bodies[J].{H}Digestive and Liver Disease,2011,(8):632-635.
9Ikenberry SO,Jue TL,Anderson MA. Management of ingested foreign bodies and food impactions[J].{H}Gastrointestinal Endoscopy,2011,(6):1085-1091.
10Zhang S, Cui Y, Gong X, et al. Endosco- pic management of foreign bodies in the upper gastrointestinal tract in South Chin- a: a retrospective study of 561 cases[J]. Dig Dis Sci,2010,55(5):1305-1312.
