1. Department of Internal Medicine and Clinical Nutrition; Institute of Medicine; Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
2. Translational Research Center for Gastrointestinal Disorders (TARGID); University of Leuven; Leuven Belgium
3. Psychology Department; Faculty of Human Sciences; Macquarie University; North Ryde NSW Australia
4. Department of Microbiology and Immunology; Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
5. Center for Functional Gastrointestinal and Motility Disorders; University of North Carolina at Chapel Hill; Chapel Hill NC USA