1. Department of Dermatology University Hospital Münster Münster Germany
2. Dermatology Office and Laser Center Landau Landau Germany
3. Department of Pediatric Dermatology Carol Davila University of Medicine and Pharmacy Bucharest Romania
4. Hamburg Germany
5. Institute for Health Services Research in Dermatology and Nursing University Medical Center Hamburg‐Eppendorf Hamburg Germany
6. Department of Dermatology Medical University of Vienna Vienna Austria