Authors: Andrew S O'Connor; Farhad Navab; Michael J Germain; Jonathan K Freeman; Jeffrey G Mulhern; Michael H O'Shea; George S Lipkowitz; Robert L Madden; Gregory L Braden Journal: Dig Dis Sci Date: 2003-11 Impact factor: 3.199
Authors: Hermann Harder; Markus W Büchler; Boris Fröhlich; Philipp Ströbel; Frank Bergmann; Wolfgang Neff; Manfred V Singer Journal: World J Gastroenterol Date: 2007-05-07 Impact factor: 5.742