- Correspondence to Dr Alex Ford, Leeds Gastroenterology Institute, St. James's University Hospital, Room 125, 4th Floor, Bexley Wing, Beckett Street, Leeds LS9 7TF, UK;
- Received September 13, 2015
- Revised October 13, 2015
- Accepted October 24, 2015
- First published November 13, 2015.
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