title: Evolution of gastrointestinal endoscopy in the mainland of China.
authors.affiliation: Evidence-Based Medicine Group, Department of Gastroenterology, Digestive Endoscopy Center, Changhai Hospital, Second Military Medical University, Shanghai 200433, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Bai
authors.forename: Zhao-shen
authors.initials: ZS
authors.lastname: Li
mesh_terms: D002681:China; D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000706:statistics & numerical data; D016099:Endoscopy, Gastrointestinal / Q000379:methods / Q000706:statistics & numerical data; D019160:Endosonography