- Correspondence to Professor Robin Spiller, NIHR Nottingham Digestive Diseases Biomedical Research Unit, E Floor West Block, Queen's Medical Centre, University of Nottingham, Derby Road, Nottingham, NG7 2UH, UK;
- Received January 6, 2015
- Revised February 2, 2015
- Accepted February 3, 2015
- First published March 12, 2015.
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