Submitted on: 11 August 2007.
Revised on: 15 November 2007.
Accepted on: 27 December 2007.
___________________BMJ Open Gastroenterology---BMJ PUBLISHING GROUP
Submitted on: 26 August 2021.
Revised on: 11 December 2021.
Accepted on: 28 December 2021.
___________________BMJ Open Gastroenterology---BMJ PUBLISHING GROUP
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Submitted on: 26 February 2015.
Revised on: 18 April 2015.
Accepted on: 09 May 2015.
___________________BMJ Open Gastroenterology---BMJ PUBLISHING GROUP
Submitted on: 21 August 2011.
Revised on: 13 November 2011.
Accepted on: 12 January 2012.
___________________BMJ Open Gastroenterology---BMJ PUBLISHING GROUP
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Submitted on: 22 March 2013.
Revised on: 22 April 2013.
Accepted on: 21 June 2013.
___________________BMJ Open Gastroenterology---BMJ PUBLISHING GROUP
Submitted on: 10 September 2004.
Revised on: 17 October 2004.
Accepted on: 19 November 2004.
___________________BMJ Open Gastroenterology---BMJ PUBLISHING GROUP