1. Center for Life Course Health Research; University of Oulu; Oulu Finland
2. Primary Health Care Center; Tornio Finland
3. Division of Family Medicine and Primary Care; Karolinska Institutet; Stockholm Sweden
4. Arokero OY; Tornio Finland
5. Faculty of Health and Medicine, Priority Research Center for Digestive Health and Neurogastroenterology; University of Newcastle; Callaghan NSW Australia
6. Australian GI Research Alliance (AGIRA); Canberra Australia
7. Psychology Department; Macquarie University; North Ryde NSW Australia