1. Department of Dermatology; Maastricht University Medical Centre; Maastricht the Netherlands
2. Department of Dermatology; Zuyderland Medical Centre; Heerlen the Netherlands
3. GROW School for Developmental Biology and Oncology
4. Department of Epidemiology; Maastricht University; Maastricht the Netherlands
5. Department of Dermatology; Erasmus Medical Centre; Rotterdam the Netherlands
6. Department of Dermatology; VieCuri Medical Centre; Venlo/Venray the Netherlands