1. Department
of Gastroenterology and Hepatology, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
2. Department
of Internal Medicine and Gastroenterology, Tergooi, Hilversum, The Netherlands
3. Netherlands
Organisation for Applied Scientific Research, TNO, Zeist, The Netherlands
4. Department
of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois, Chicago, Illinois 60612, United States
5. Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
6. Schaafsma
Advisory Services in Food, Health and Safety, Scherpenzeel, The Netherlands