Lopez-Roman Orlando, Cruz-Corea Marcia, Toro Doris H, Gonzalez-Keelan Carmen
Department of Gastroenterology, Veterans Affairs Caribbean Health Care System, San Juan, Puerto Rico.
Gastrointest Endosc. 2012 Sep;76(3):672-4. doi: 10.1016/j.gie.2012.04.468. Epub 2012 Jun 23.