1. Department of Dermatology Radboud University Medical Center Nijmegen the Netherlands
2. Radboud Institute for Health Sciences Radboud University Medical Center Nijmegen the Netherlands
3. Department for Health Evidence Radboud University Medical Center Nijmegen the Netherlands
4. Department of Dermatology Ziekenhuis Gelderse Vallei Ede the Netherlands
5. Department of Dermatology Slingeland Ziekenhuis Doetinchem the Netherlands
6. Department of Dermatology University Medical Center Utrecht Utrecht the Netherlands
7. Department of Dermatology Catharina Ziekenhuis Eindhoven the Netherlands
8. Department of Dermatology Canisius‐Wilhelmina Ziekenhuis Nijmegen the Netherlands
9. Department of Dermatology Gelre Ziekenhuizen Apeldoorn the Netherlands
10. Department of Dermatology Bernhoven Ziekenhuis Uden the Netherlands
11. Department of Dermatology Amphia Ziekenhuis Breda the Netherlands
12. Department of Dermatology Máxima Medisch Centrum Eindhoven the Netherlands
13. Department of Dermatology Maastricht University Medical Center Maastricht the Netherlands
14. Department of Dermatology St Anna Ziekenhuis Geldrop the Netherlands
15. Department of Dermatology Ziekenhuisgroep Twente Almelo/Hengelo the Netherlands
16. Department of Dermatology St Antonius Ziekenhuis Nieuwegein the Netherlands
17. Department of Dermatology Ziekenhuis Rijnstate Arnhem the Netherlands
18. Department of Dermatology Jeroen Bosch Ziekenhuis,'s Hertogenbosch the Netherlands
19. Radboud University Nijmegen the Netherlands