Bjornsson Einar S, Jacobsen Elin I, Einarsdottir Rannveig, Chalasani Naga
National University of Iceland, Reykjavik, Iceland.
Indiana University School of Medicine, Indianapolis, Indiana.
Gastroenterology. 2015 Feb;148(2):269-73. doi: 10.1053/j.gastro.2014.12.007. Epub 2014 Dec 18.