LEADERS IN WEIGHT LOSS AND BARIATRIC SURGERY Dr. Guillermo Alvarez is a highly skilled weight loss surgeon located in Piedras Negras, Mexico. He specialized in numerous forms of laparoscopic bariatric surgery but has a specific interest in the gastric sleeve (VSG) procedure. Dr. Alvarez is board certified, an active member of the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES), has performes thousands of weight loss surgery procedures and is the author of the book "Successful Weight Loss with the Gastric Sleeve." Patients travel far and wide but predominantly from the U.S. and Canada to his facility in order to receive world-class healthcare at a fraction of the cost charged in the U.S. Article published in the May 14, 2012 Edition.