1. ELSAN, Clinique Saint Michel, Centre Chirurgical de l’Óbesite, 83000 Toulon, France
2. ELSAN, Clinique Bouchard, 13006 Marseille, France
3. Emirates Specialty Hospital, Dubai Healthcare City, Dubai 505240, United Arab Emirates
4. Mediclinic Airport Road Hospital, Abu Dhabi 48481, United Arab Emirates
5. Endocrine, Metabolic and Bariatric Unit, General Surgery Department, Hospital Vall d’Hebron, 08035 Barcelona, Spain
6. Surgery Department, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain