作者单位:Institute of Pathology, Hannover Medical School, Hannover, Germany[1]Sana Kliniken Luebeck, Luebeck, Germany[2]Institute of Biometry, Hannover Medical School, Hannover, Germany[3]Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover[4]Interfaculty Institute of Biochemistry, University of Tuebingen, Tuebingen, Germany[5]