http://reply.papertrans.cn/2/159/15896/15896-21.png
Submitted on: 02 November 2019.
Revised on: 20 February 2020.
Accepted on: 04 April 2020.
___________________JOURNAL OF CLINICAL GASTROENTEROLOGY
Submitted on: 03 December 2011.
Revised on: 05 February 2012.
Accepted on: 14 March 2012.
___________________JOURNAL OF CLINICAL GASTROENTEROLOGY
http://reply.papertrans.cn/2/159/15896/15896-24.png
http://reply.papertrans.cn/2/159/15896/15896-25.png
http://reply.papertrans.cn/2/159/15896/15896-26.png
http://reply.papertrans.cn/2/159/15896/15896-27.png
http://reply.papertrans.cn/2/159/15896/15896-28.png
http://reply.papertrans.cn/2/159/15896/15896-29.png
http://reply.papertrans.cn/2/159/15896/15896-30.png