Mönkemüller K, Fry L C, Bellutti M, Neumann H, Malfertheiner P
Division of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University, Universitätsklinikum Magdeburg, Magdeburg, Germany.
Endoscopy. 2008 Sep;40 Suppl 2:E19-20. doi: 10.1055/s-2007-966949. Epub 2008 Feb 18.