1 Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, Leuven, Belgium.
2 Department of Endocrinology, University Hospitals Leuven, Leuven, Belgium.
3 Translational Research Center for Gastrointestinal Disorders, Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, Leuven, Belgium.
4 Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium.
5 Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, Leuven, Belgium. Christophe.matthys@uzleuven.be.
6 Department of Endocrinology, University Hospitals Leuven, Leuven, Belgium. Christophe.matthys@uzleuven.be.