1. PGY4 Resident General Surgery, Pontificia Universidad Catolica del Ecuador, Quito, Pichincha, Ecuador
2. Division of Bariatric Surgery, Department of General Surgery, Hospital Metropolitano, Quito, Pichincha, Ecuador
3. Division of Gastroenterology, Department of Internal Medicine, Clinica SOM, Quito, Pichincha, Ecuador
4. Division of Gastroenterology, Department of Internal Medicine, Hospital Metropolitano, Quito, Pichincha, Ecuador