1. University Hospital Carl Gustav Carus, Technical University Dresden; Department of Dermatology; Fetscherstr. 74 Dresden Germany 01307
2. Friedrich Schiller University; Department of Dermatology and Allergology; Erfurter Strasse 35 Jena Germany D 07743
3. University Medical Center Groningen; Department of Dermatology; Hanzeplein 1 Groningen Netherlands 9713 GZ
4. Coventry University; Centre for Innovative Research Across the Life Course (CIRAL); Richard Crossman Building Gosford Street Coventry UK CV1 5FB
5. University Hospital Jena; Department of Dermatology; Erfurter Str. 35 Jena Germany 07743
6. University of Osnabrueck; Department of Dermatology, Environmental Medicine, Health Theory; Sedanstr 115 Osnabrueck Germany DE 49069
7. University of Nottingham; Centre of Evidence Based Dermatology; Queen's Medical Centre Derby Road Nottingham UK NG7 2UH