Martin-Luther-University Halle-Wittenberg - Department of Internal Medicine IV, Oncology/Hematology, Martin-Luther-University Halle-Wittenberg - Department of Internal Medicine IV, Oncology/Hematology, Martin-Luther-University Halle-Wittenberg - Department of Internal Medicine IV, Oncology/Hematology, Martin Luther University of Halle-Wittenberg - Institute for Medical Epidemiology, Biometrics and Informatics (IMEBI), Martin Luther University of Halle-Wittenberg - Institute for Medical Epidemiology, Biometrics and Informatics (IMEBI), Martin Luther University of Halle-Wittenberg - Institute for Medical Epidemiology, Biometrics and Informatics (IMEBI), Martin Luther University of Halle-Wittenberg - Department of Internal Medicine IV, Oncology/Hematology, University of Hamburg - Department of Medicine, Martin Luther University of Halle-Wittenberg - Mid-German Heart Center, Martin Luther University of Halle-Wittenberg - Mid-German Heart Center, Martin Luther University of Halle-Wittenberg - Institute of General Practice and Family Medicine, Martin Luther University of Halle-Wittenberg - Department of Internal Medicine II, Martin Luther University of Halle-Wittenberg - Pediatric Hematology and Oncology, Martin Luther University of Halle-Wittenberg - Julius Bernstein-Institute of Physiology, Martin Luther University of Halle-Wittenberg - Institute for Medical Epidemiology, Biometrics and Informatics (IMEBI) and Martin-Luther-University Halle-Wittenberg - Department of Internal Medicine IV, Oncology/Hematology