作者单位:Department of Medicine II (Gastroenterology Hepatology Endocrinology and Infectious Diseases[1]Institute for Surgical Pathology Freiburg University Medical Center University of Freiburg[2]Institute of Neuropathology and Center for Basics in NeuroModulation (NeuroModulBasics) Faculty of[3]Institute of Pathology TUM School of Medicine Technical University of Munich[4]