1 Department of Abdominal Surgery, University Hospitals Leuven, and Laboratory of Experimental Medicine and Endocrinology, University of Leuven, Leuven, Belgium [email protected].
2 Department of Abdominal Surgery, AZ Sint-Jan, Bruges, Belgium.
3 Department of Abdominal Surgery, University Hospitals Ghent, Ghent, Belgium.
4 I-Biostat, KU Leuven, University of Leuven, and Universiteit Hasselt, Leuven, Belgium.
5 Department of Endocrinology, University Hospitals Leuven, and Laboratory of Experimental Medicine and Endocrinology, University of Leuven, Leuven, Belgium.
6 Department of Abdominal Surgery, University Hospitals Leuven, Leuven, Belgium.