- Correspondence to Professor Jan Tack, Translational Research Centre for Gastrointestinal Disorders, University of Leuven, Herestraat 49, bus 701, Leuven BE-3000, Belgium; jan.tacked.kuleuven.be
- Received January 23, 2015
- Revised March 20, 2015
- Accepted March 30, 2015
- First published May 18, 2015.
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