1. Faculty of Health & Human SciencesUniversity of Plymouth Devon UK
2. Department of Development and RegenerationKU Leuven Leuven Belgium
3. Department of Obstetrics and GynaecologyUniversity Hospitals Leuven Leuven Belgium
4. Institute of Health and SocietyNewcastle University Newcastle upon Tyne UK
5. King's College Hospital NHS Foundation Trust London UK
6. Department of Nutritional Science, Faculty of Health and MedicineUniversity of Surrey Guildford UK
7. Department of Endocrinology, Diabetes and Metabolic DiseasesUniversity Medical Centre Ljubljana Slovenia
8. Department of Upper Gastrointestinal and Bariatric SurgeryHomerton University Hospital London UK
9. Department of Obstetrics and Gynaecology, Division of Obstetrics and Prenatal MedicineErasmus MC Rotterdam the Netherlands
10. Weill Cornell Medicine in QatarQatar Foundation, Education City Doha Qatar
11. Musgrove Park Hospital Taunton UK
12. Department of Diabetes and Metabolism, St. Bartholomew's Hospital and The Royal London HospitalBarts Health NHS Trust London UK
13. Israel Centre for Disease ControlMinistry of Health Jerusalem Israel
14. Faculty of Health and Medical SciencesUniversity of Surrey Guildford UK
15. Department of Clinical and Experimental MedicineUniversity of Surrey Guildford UK
16. St. Richard's Hospital Bariatric Surgery Service, ChichesterWestern Sussex NHS Foundation Trust Chichester UK
17. Department of Obstetrics, Gynaecology and ReproductionSt‐Augustinus Hospital Wilrijk Wilrijk Belgium