Dr. Ahmed Yousry Consultant and Lecturer of Oncology, Laparoscopic, and General Surgery at Kasr Al-Ainy Faculty of Medicine, Cairo University. PhD in General and Laparoscopic Surgery, Cairo University. Master's in General and Laparoscopic Surgery, Cairo University. Faculty member, Cairo University. Member of the International Federation for the Surgery of Obesity. Member of the Society of Laparoscopic Surgery. Member of the Egyptian Society of Surgeons.