1. Department of Medicine, Universidad de la Sabana, Bogotá 250001, Colombia
2. Division of Gastroenterology, Hepatology, and Nutrition, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
3. Department of Medicine, Texas Tech University, Lubbock, TX 79409, USA
4. Cardiovascular Division, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
5. Department of Medicine, Maimonides Medical Center, Brooklyn, NY 11219, USA