Neumann Helmut, Nägel Andreas, Bernatik Thomas, Wickles Nadine, Neurath Markus F, Raithel Martin
Department of Medicine I, University of Erlangen-Nuremberg, Germany.
Gastrointest Endosc. 2011 Jul;74(1):200-2; discussion 202. doi: 10.1016/j.gie.2011.01.057. Epub 2011 Apr 8.