- Correspondence to: S M Madsen Department of Medical Gastroenterology, Copenhagen University Hospital in Gentofte, Niels Andersensvej 65, DK-2900 Hellerup, Denmark;
- Received November 21, 2005
- Accepted April 27, 2006
- Revised February 16, 2006
- First published March 30, 2007.
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