1. Primary Care and General Practice, Faculty of Medical Sciences Newcastle University Newcastle upon Tyne UK
2. Department of Health Sciences United Campus of Malta Msida Malta
3. Icahn School of Medicine at Mount Sinai New York City New York USA
4. NIHR Nottingham Biomedical Research Centre Nottingham University Hospitals NHS Trust Nottingham UK
5. School of Medicine, University of Nottingham and Translational Medical Science – Nottingham Digestive Diseases Centre University of Nottingham Nottingham UK
6. 4th Local Primary Care Team Municipality Practice and Academic Practice of Heraklion Crete Greece
7. Department of Family Medicine Care and Public Health Research Institute (CAPHRI) Maastricht University Maastricht The Netherlands
8. La Mina Primary Care Academic Centre, Catalan Health Institute University of Barcelona Barcelona Spain
9. Division of Gastroenterology, Feinberg School of Medicine Northwestern University Chicago Illinois USA