1. Division of Gastroenterology - Hepatology; Department of Internal Medicine; Maastricht University Medical Center+; Maastricht The Netherlands
2. NUTRIM; School of Nutrition and Translational Research in Metabolism; Maastricht University Medical Center+; Maastricht The Netherlands
3. Division of Pharmacoepidemiology and Clinical Pharmacology; Utrecht Institute of Pharmaceutical Sciences; Utrecht The Netherlands
4. Clinical Pharmacology & Toxicology; Maastricht University Medical Center+; Maastricht The Netherlands
5. Division of Digestive Diseases and Nutrition; Rush University; Chicago IL USA