- Correspondence to Dr H Uhlig, Translational Gastroenterology Unit, Nuffield Department of Clinical Medicine and Children's Hospital, John Radcliffe Hospital, University of Oxford, Oxford OX3 9DU, England, UK;
- Received January 21, 2013
- Revised April 2, 2013
- Accepted April 23, 2013
- First published November 7, 2013.
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