Department of Digestive Diseases, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
Correspondence to James J. Farrell, MD, UCLA School of Medicine, Division of Digestive Diseases, UCLA Center for the Health Science, Los Angeles, CA 90095, USA Tel: +1 310 267 4664; fax: +1 310 794 1896; e-mail: [email protected]
doi: 10.1097/MOG.0b013e3282c3a630
