- Correspondence to Professor Jan Tack, Department of Clinical and Experimental Medicine, Translational Research Center for Gastrointestinal Disorders, KU Leuven, Herestraat 49, box 701, Leuven 3000, Belgium;
- Received October 2, 2012
- Revised February 8, 2013
- Accepted February 10, 2013
- First published March 8, 2013.
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