1. Institute of Family Medicine University Hospital Schleswig‐Holstein, Campus Lübeck Lübeck Germany
2. Department of Oral and Maxillofacial Surgery University Hospital Schleswig‐Holstein, Campus Kiel Kiel Germany
3. Department of Prosthodontics, Propaedeutics and Dental Materials University Hospital Schleswig‐Holstein, Campus Kiel Kiel Germany
4. Institute for History, Theory and Ethics of Medicine University Hospital Aachen, RWTH Aachen University Aachen Germany