- Dr Daniel Sifrim, Faculty of Medicine K.U.Leuven, Lab G-I Physiopathology, O&N 1 Gasthuisberg, 7th floor, Herestraat 49, 3000, Leuven, Belgium;
- Revised March 5, 2008
- Accepted March 5, 2008
- First published March 27, 2008.
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