- Correspondence to Dr Vivian E Ekkelenkamp, Department of Gastroenterology and Hepatology, Erasmus MC, University Medical Center, room Ca-415, P.O. Box 2040, Rotterdam 3000 CA, The Netherlands;
- Received April 3, 2013
- Revised June 21, 2013
- Accepted July 2, 2013
- First published July 18, 2013.
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