Second Mil Med Univ;
Changhai Hosp;
Dept Gastroenterol;
Capsule Endoscopy Study Grp;
Shanghai 200433;
Peoples R China;
Jianshan Sci & Technol Grp Co Ltd;
Chongqing 401120;
Peoples R China;
OMOM capsule endoscopy; Obscure gastrointestinal bleeding; Small bowel;