1. Department of Internal Medicine III – Cardiology, Angiology and Internal Intensive Care Medicine, Mid-German Heart Center, Interdisciplinary Center for Health Sciences, University Hospital Halle (Saale)
2. Institute of Medical Epidemiology, Biostatistics, and Informatics, Interdisciplinary Center for Health Sciences, Medical Faculty of the Martin Luther University Halle-Wittenberg, Halle (Saale)
3. University Clinic and Outpatient Clinic for Cardiac Surgery, Mid-German Heart Center, University Hospital Halle (Saale)
4. Division of Cancer Epidemiology, German Cancer Research Centre, Heidelberg, Germany