Authors: Thomas Walcher; Mark Martin Haenle; Martina Kron; Birgit Hay; Richard Andrew Mason; Alexa Friederike Alice von Schmiesing; Armin Imhof; Wolfgang Koenig; Peter Kern; Bernhard Otto Boehm; Wolfgang Kratzer Journal: World J Gastroenterol Date: 2005-11-21 Impact factor: 5.742