1. Department of Operative Dentistry and Periodontology; Martin Luther University Halle-Wittenberg; Halle Germany
2. Department of Internal Medicine III; Heart Centre of the University Clinics Halle (Saale); Martin Luther University Halle-Wittenberg; Halle Germany
3. Department of Cardiothoracic Surgery; Heart Centre of the University Clinics Halle (Saale); Martin Luther University Halle-Wittenberg; Halle Germany
4. Institute for Medical Epidemiology, Biostatistics, and Informatics; Martin Luther University Halle-Wittenberg; Halle Germany
5. Department of Cardiology; Paracelsus Harz-Clinic Bad Suderode; Halle Germany