Submitted on: 09 March 2012.
Revised on: 22 March 2012.
Accepted on: 12 April 2012.
Lancet Gastroenterology & Hepatology
http://reply.papertrans.cn/3/205/20492/20492-32.png
Submitted on: 04 November 2002.
Revised on: 14 November 2002.
Accepted on: 04 December 2002.
Lancet Gastroenterology & Hepatology
Submitted on: 05 May 2019.
Revised on: 15 June 2019.
Accepted on: 03 July 2019.
Lancet Gastroenterology & Hepatology
http://reply.papertrans.cn/3/205/20492/20492-35.png
Submitted on: 20 May 2009.
Revised on: 01 July 2009.
Accepted on: 21 July 2009.
Lancet Gastroenterology & Hepatology