Submitted on: 28 February 2001.
Revised on: 01 June 2001.
Accepted on: 18 July 2001.
___________________BMC GASTROENTEROLOGY---BMC
Submitted on: 23 May 2004.
Revised on: 28 June 2004.
Accepted on: 30 July 2004.
___________________BMC GASTROENTEROLOGY---BMC
Submitted on: 26 February 2014.
Revised on: 06 April 2014.
Accepted on: 17 May 2014.
___________________BMC GASTROENTEROLOGY---BMC
Submitted on: 21 March 2023.
Revised on: 03 June 2023.
Accepted on: 01 August 2023.
___________________BMC GASTROENTEROLOGY---BMC
Submitted on: 15 August 2023.
Revised on: 04 October 2023.
Accepted on: 06 November 2023.
___________________BMC GASTROENTEROLOGY---BMC
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Submitted on: 03 August 1998.
Revised on: 22 October 1998.
Accepted on: 04 November 1998.
___________________BMC GASTROENTEROLOGY---BMC
Submitted on: 13 March 2011.
Revised on: 03 June 2011.
Accepted on: 09 July 2011.
___________________BMC GASTROENTEROLOGY---BMC