Submitted on: 22 March 2003.
Revised on: 15 May 2003.
Accepted on: 05 July 2003.
___________________Clinical and Translational Gastroenterology
Submitted on: 08 June 2001.
Revised on: 02 July 2001.
Accepted on: 24 August 2001.
___________________Clinical and Translational Gastroenterology
Submitted on: 14 July 1999.
Revised on: 23 September 1999.
Accepted on: 24 October 1999.
___________________Clinical and Translational Gastroenterology
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Submitted on: 13 September 2008.
Revised on: 10 November 2008.
Accepted on: 28 December 2008.
___________________Clinical and Translational Gastroenterology
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Submitted on: 13 March 2013.
Revised on: 12 May 2013.
Accepted on: 17 June 2013.
___________________Clinical and Translational Gastroenterology
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Submitted on: 30 July 2001.
Revised on: 15 November 2001.
Accepted on: 14 January 2002.
___________________Clinical and Translational Gastroenterology