http://reply.papertrans.cn/2/164/16333/16333-21.png
Submitted on: 31 January 2001.
Revised on: 12 April 2001.
Accepted on: 27 April 2001.
___________________Journal of Digestive Diseases---WILEY
Submitted on: 06 August 1998.
Revised on: 28 September 1998.
Accepted on: 16 November 1998.
___________________Journal of Digestive Diseases---WILEY
Submitted on: 12 October 2001.
Revised on: 02 February 2002.
Accepted on: 30 March 2002.
___________________Journal of Digestive Diseases---WILEY
http://reply.papertrans.cn/2/164/16333/16333-25.png
Submitted on: 03 August 2012.
Revised on: 21 September 2012.
Accepted on: 02 November 2012.
___________________Journal of Digestive Diseases---WILEY
Submitted on: 19 December 2010.
Revised on: 15 January 2011.
Accepted on: 07 March 2011.
___________________Journal of Digestive Diseases---WILEY
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http://reply.papertrans.cn/2/164/16333/16333-29.png
Submitted on: 24 June 2014.
Revised on: 03 October 2014.
Accepted on: 19 November 2014.
___________________Journal of Digestive Diseases---WILEY