Authors: Toni Urbanik; Bruno Christian Koehler; Laura Wolpert; Christin Elßner; Anna-Lena Scherr; Thomas Longerich; Nicole Kautz; Stefan Welte; Nadine Hövelmeyer; Dirk Jäger; Ari Waisman; Henning Schulze-Bergkamen Journal: World J Gastroenterol Date: 2014-12-07 Impact factor: 5.742