Department of public Health, KU Leuven, Leuven, Belgium
Department of Rehabilitation Sciences, University Hospitals KULeuven, Leuven, Vlaams-Brabant, Belgium
University Hospital Gasthuisberg Divisionof Pulmonology, Leuven, Belgium
Katholieke Universiteit Leuven, Leuven, Flanders, Belgium
University hospital Leuven, Leuven, Flanders, Belgium
University hospital Leuven, Leuven, Flanders, Belgium
Department of Abdominal Surgery, Leuven, Vlaams-Brabant, Belgium
Department of Gastroenterology, Leuven, Belgium
University Hospitals Leuven, Leuven, Brabant, Belgium
University Hospital Leuven, Catholic University Leuven, Leuven, Belgium
University Hospital Gasthuisberg, Leuven, Belgium