Hollerbach Stephan, Freund Ulrich, Stolte Manfred
Division of Gastroenterology, Department of Medicine, Allgemeines Krankenhaus Celle, Academic Teaching Hospital, University of Hannover Medical School, Celle, Germany.
Clin Gastroenterol Hepatol. 2006 Jun;4(6):xxxii. doi: 10.1016/j.cgh.2006.01.010. Epub 2006 Apr 19.