1. Division of Minimally Invasive and Bariatric Surgery, Department of Surgery, Minimally Invasive Surgery Research Center, Rasool-E Akram Hospital, School of Medicine, Iran University of Medical Sciences
2. Center of Excellence of European Branch of International Federation for Surgery of Obesity, Hazrat-E Rasool Hospital
3. Diabete Athérothrombose Thérapies Réunion Océan Indien, INSERM, UMR 1188, Université de La Réunion
4. Department of Digestive Surgery Unit, University Hospital of la Réunion – Félix Guyon Hospital, Saint-Denis, La Réunion, France
5. Division of Minimally Invasive and Bariatric Surgery, Minimally Invasive Surgery Research Center, Iran University of Medical Sciences, Tehran
6. Urmia University of Medical Sciences, Urmia, Iran
7. Department of Surgery, Whittington Hospital, London, UK