1. Department of Gastro-Enterology and Hepatology, Dietetics and Intestinal Failure, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
2. Department of Operating Rooms, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
3. Department of Surgery, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
4. FrieslandCampina, 6708 WH Wageningen, The Netherlands
5. Faculty of Sports & Nutrition, Amsterdam University of Applied Sciences, 1067 SM Amsterdam, The Netherlands