1. Division of Infection and Immunity; Department of Dermatology and Wound Healing; Cardiff University; Cardiff UK
2. Department of Pharmacy, Pharmacology and Postgraduate Medicine; School of Life & Medical Sciences; University of Hertfordshire; Hatfield UK
3. Clinical Epidemiology Unit; IDI-IRCCS FLMM; Rome Italy
4. Department of Psychology; Aragon Health Sciences Institute; University of Zaragoza; Zaragoza Spain
5. Dutch Skin Foundation; Nieuwegein The Netherlands
6. Department of Medical Psychology; Academic Medical Center; Amsterdam The Netherlands
7. Health, Medical, and Neuropsychology unit; Leiden University; Leiden The Netherlands
8. Department of Dermatology; Zealand University Hospital; Roskilde Denmark
9. Health Sciences Faculty; University of Copenhagen; Denmark
10. Oslo Center for Biostatistics and Epidemiology; University of Oslo; Oslo Norway
11. Dali Medical, Dermatology; Bucharest Romania
12. Department of Dermatology; Alcañiz Hospital, Aragon Health Sciences Institute; Zaragoza Spain
13. VU University Medical Center; Department of Epidemiology and Biostatistics; EMGO Institute for Health and Care Research; Amsterdam The Netherlands
14. North Karelia Central Hospital; Joensuu Finland
15. Department of Dermatology and Venereology; National Medical University; Kiev Ukraine