1. Department of Dermatology, Maastricht University Medical Center, Maastricht, the Netherlands
2. GROW School for Oncology and Reproduction, Maastricht University Medical Center, Maastricht, the Netherlands
3. Department of Epidemiology, Maastricht University, Maastricht, the Netherlands
4. Department of Dermatology, Zuyderland Medical Center, Heerlen, the Netherlands
5. Department of Dermatology, Catharina Hospital, Eindhoven, the Netherlands
6. Department of Dermatology, VieCuri Medical Center, Venlo, the Netherlands
7. Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Center, Maastricht, the Netherlands