Mertens Joachim, Weber Achim, Müllhaupt Beat, Geier Andreas
Division of Gastroenterology & Hepatology, University Hospital Zürich, Rämistrasse, Zurich, Switzerland.
Liver Int. 2011 May;31(5):666. doi: 10.1111/j.1478-3231.2010.02349.x. Epub 2010 Oct 4.