1. Department of Dermatology Maastricht University Medical Centre+ Maastricht the Netherlands
2. GROW Research Institute for Oncology and Developmental Biology Maastricht University Maastricht the Netherlands
3. Department of Dermatology Zuyderland Medical Centre Heerlen the Netherlands
4. Maastricht University Maastricht the Netherlands
5. Department of Epidemiology Maastricht University Maastricht the Netherlands
6. Department of Clinical Epidemiology and Medical Technology Assessment Maastricht the Netherlands