1. Department of Dermatology; University Hospital Antwerp (UZA) and University of Antwerp (UA); 2650 Antwerp Belgium
2. Department of Dermatology; University Hospitals KU Leuven; 3000 Leuven Belgium
3. Service Dermatologie; Hôpital Larrey, CHU Toulouse; 31059 Toulouse France
4. Dermatologie; Avenue de Montredon; 13008 Marseille France
5. Service Dermatologie; Hôpital St André, CHU Bordeaux; 33000 Bordeaux France