1. Faculty of Medicine, Universidad Complutense de Madrid, Madrid, Spain
2. Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
3. Faculty of Medicine and Dentistry, Sapienza University of Rome, Rome, Italy
4. Faculty of Medicine, Brighton and Sussex Medical School, Brighton, UK
5. Department of Surgery, Royal Free London Hospitals NHS Foundation, London, UK
6. Faculty of Health Sciences and Wellbeing, University of Sunderland, Sunderland, UK
7. Facultad de Psucologia, Universidad Anahuac Mexico, Mexico City, Mexico
8. Department of Bariatric and Metabolic Surgery, Krankenhaus Nordwest, Frankfurt am Main, Germany
9. Department of Surgery, Holy Family Hospital, Nazareth, Israel
10. Azrieli, Faculty of Medicine, Bar-Ilan University, Safed, Israel
11. Department of Cardiology, Catharina Hospital, Eindhoven, The Netherlands
12. Department of Surgery, Whittington Health NHS Trust, London, UK
13. Department of Intensive Care Medicine, Elisabeth-Tweesteden Hospital, Tilburg, The Netherlands