9Yamamoto H,Sugano K.A new method of enteroscopy-the double-balloon method.Can J Gastroenterol,2003,17:273-274.
10Costamagna G,Shah SK,Rinccioni ME,et al.A prospective trial comparing small bowel radiographs and video capsule endoscopy for suspected small bowel disease.Gastroenterology,2002,123:999-1005.