Neumann Helmut, Mönkemüller Klaus, Malfertheiner Peter
Division of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University, Universitätsklinikum Magdeburg, Magdeburg, Germany.
Clin Gastroenterol Hepatol. 2008 Aug;6(8):A32. doi: 10.1016/j.cgh.2008.02.042. Epub 2008 May 19.