1. Dermatology; University of Helsinki and Helsinki University Central Hospital; Helsinki Finland
2. Service de Dermatologie; Hôpital de la Source; CHR d'Orléans; Orléans France
3. Centre clinique et biologique des MST; Hôpital Saint-Louis; Paris France
4. Private Practice; Orléans France
5. Private Practice; Blanquefort France
6. Private Practice; Montpellier France