1. Division of Gastroenterology and Hepatology, Department of Internal Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
2. Department of Gastroenterology and Hepatology, Catharina Hospital Eindhoven, The Netherlands
3. Department of Otorhinolaryngology/Head & Neck Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
4. Department of Neurology, Maastricht University Medical Center, Maastricht, The Netherlands
5. Department of Radiology, Maastricht University Medical Center, Maastricht, The Netherlands