Affiliation: | a Institute of Clinical Chemistry and Pathobiochemistry, RWTH University Hospital Aachen, Pauwelsstr. 30, D-52074 Aachen, Germany b Molecular Alcohol Research in Gasteroenterology, Department of Medicine II, University Hospital Mannheim, University Heidelberg, Theodor-Kutzer-Ufer 1-3, D-68167 Mannheim, Germany |