

Assessment
- Surgeon – Assess the necessity and risk of surgery
- Endocrinologist - Assess the severity of diabetes
- Respirologist - Assess the severity of sleep apnea
- Dietitians - Assess the feasibilities of diet control on weight loss
- Psychiatrist - Assess the feasibilities of using psychotherapy for weight loss

Surgery
- Surgeon - Perform the bariatric surgery
- Anesthetist - Monitor the level of anesthesia
- Intensive care unit – Provide post-operative care

Post-Care
- Surgeon – Provide post-operative care
- Dietitian – Provide diet planning after surgery
- Physiotherapist - design exercise plan after surgery