Department of Gastroenterology, West China Hospital, Sichuan University, NO. 37, Guo Xue Xiang, Chengdu, Sichuan, 610041, China.
Correspondence: B.H. (email: [email protected])
SUPPLEMENTARY MATERIAL accompanies this paper at https://links.lww.com/AJG/A323
Received 24 February 2018; accepted 6 May 2018; Published online 28 September 2018
