The study is an anonymous, online cross-sectional survey with three survey waves. The surveys will take place 2 months, 5 months and 13 months after the start of the study on 01.06.2020. A total of 18,000 office-based specialists will be included in the online survey: General practitioners, internists, paediatricians, dentists, ENT specialists and gynaecologists.
| General practitioners |
6.500 |
| Medical specialists for internal medicine: | |
| Cardiology | 1.000 |
| Gastroenterology | 500 |
| Specialists in paediatrics | 2.000 |
| Specialists in gynaecology | 2.000 |
| Specialists in ENT | 2.000 |
| Dentists | 4.000 |
The doctors in private practice are selected at random and invited in writing to participate in the study.