1 Nottingham Digestive Diseases Centre, Translational Medical Sciences, and the Biodiscovery Institute, University of Nottingham, Nottingham, NG7 2RD, UK; National Institute of Health Research (NIHR) Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and University of Nottingham, Nottingham; Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark. Electronic address: peter.aldiss1@nottingham.ac.uk.
3 Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark.
4 Clinical Research, Copenhagen University Hospital, Steno Diabetes Center Copenhagen, Herlev, Denmark; Steno Diabetes Center Greenland, Queen Ingrid's Hospital, Nuuk, Greenland; Centre for Public Health in Greenland, National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark.
5 Department of Medicine and Surgery, LUM University, Casamassima, Italy; Gastrointestinal Genetics Lab, CIC bioGUNE - BRTA, Derio, Spain; Ikerbasque, Basque Foundation for Science, Bilbao, Spain.