1. Gastroenterology and Obesity Clinic Medica Sur Clinic and Foundation Mexico City Mexico
2. Metabolic Unit Department of Gastroenterology Insituto Nacional de Ciencias Médicas y Nutrición “Slavador Zubirán” Tlalpan, Ciudad de México Mexico
3. Liver Research Unit, Medica Sur Clinic & Foundation and Faculty of Medicine National Autonomous University of Mexico Mexico City Mexico