Hao L, Liu Y, Wang T, Guo HL, Wang D, Bi YW, Xin L, He L, Lin JH, Zhang D, Zeng XP, Zou WB, Chen H, Xie T, Li BR, Cong ZJ, Wang LS, Liao Z, Xu ZL, Li ZS, Hu LH.
Department of Gastroenterology, Hainan Branch of Chinese PLA General Hospital, Sanya, China.  Gongli Hospital, The Second Military Medical University, Shanghai, China. Digestive Endoscopy Center, Changhai Hospital, The Second Military Medical University, Shanghai, China. Department of Gastroenterology, Zhongda Hospital, Southeast University, Nanjing, China. Air Force General Hospital, Beijing, China. Department of General Surgery, Renji Hospital, Shanghai Jiaotong University, Shanghai, China.Department of Gastroenterology, The Second Clinical Medical College (Shenzhen People's Hospital), Jinan University, Shenzhen, China.

Xun Y, Li J, Geng Y, Liu Z, Yu X, Wang X, Xiao F, Li Z, Li C, Wang S.
Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Avenue, Wuhan, Hubei, 430030, China.

Yamashita S, Kohjimoto Y, Iwahashi Y, Iguchi T, Iba A, Nishizawa S, Hara I.
Department of Urology, Wakayama Medical University, Wakayama, Japan.

Haraldsson S, Roug S, Nøjgaard C, Novovic S, Gluud LL, Feldager E, Schmidt PN.
Department of Gastroenterology, Landspitali - University Hospital, Reykjavik, Iceland. Abdominal Center K, Bispebjerg Hospital, Copenhagen, Denmark. Department of Gastroenterology and Gastrointestinal Surgery, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark.

Islamoglu E, Tas S, Karamik K, Yalcinkaya S, Tokgoz H, Savas M
University of Health Sciences, Antalya Training and Research Hospital, Antalya, Turkey.