Tieu Alan H, Kumbhari Vivek, Saxena Payal, Khashab Mouen A
Department of Medicine and Division of Gastroenterology and Hepatology, The Johns Hopkins Medical Institutions, Baltimore, Maryland, USA.
Gastrointest Endosc. 2015;81(6):1477. doi: 10.1016/j.gie.2015.01.004. Epub 2015 Apr 9.