1. Pediatric Dermatology Unit; CHU Bordeaux; University Hospital of Bordeaux; Hôpital Pellegrin-Enfants; Bordeaux France
2. CIC 0005; Centre d'investigation clinique; Bordeaux France
3. Institut de Recherche Pierre Fabre; Toulouse France
4. Dermatology Clinic; Tartu University Hospital; Tartu Estonia
5. Specjalistyczne Gabinety Lekarskie “Dermed”; Łódź Poland
6. Centre of Dermatovenereology; Vilnius University Hospital Santariskiu klinikos; Vilnius University; Vilnius Lithuania
7. Clinic of Infectious; Chest Diseases; Dermatovenereology and Allergology; Vilnius University; Vilnius Lithuania
8. 2nd Clinic of Dermatology; “Colentina” Clinical Hospital; Bucharest Romania