1. Department of Rheumatology and Immunology Hannover Medical School Hannover Germany
2. Institute for Economics Labour and Culture Goethe‐University Frankfurt Frankfurt Am Main Germany
3. Department of Public Health Faculty of Political Administrative and Communication Sciences Babeș‐Bolyai University Cluj‐Napoca Romania
4. Center for Health Workforce Research and Policy Faculty of Political Administrative and Communication Sciences Babeș‐Bolyai University Cluj‐Napoca Romania
5. Department of General Practice University Medical Center Göttingen Göttingen Germany
6. Department for Psychiatry and Psychotherapy Charité—Universitätsmedizin Berlin Berlin Germany
7. German Centre for Infection Research Hannover‐Brunswick Hannover Germany