1. Department of Dermatology; Centro Hospitalar do Porto; 4099-001 Porto Portugal
2. Department of Dermatology; Centro Hospitalar Lisboa Central; 1169-050 Lisboa Portugal
3. Department of Dermatology; Hospital CUF Descobertas; 1998-018 Lisboa Portugal
4. Department of Dermatology; Hospital de Santarém; 2005-177 Santarém Portugal
5. Department of Dermatology; Hospital de Braga; 4710 Braga Portugal
6. Department of Dermatology; Hospital Pedro Hispano; 4460 Matosinhos Portugal
7. Department of Dermatology; Centro Hospitalar São João; 4200-319 Porto Portugal
8. Department of Dermatology; Centro Hospitalar Vila Nova de Gaia; 4400-129 Vila Nova de Gaia Portugal
9. Department of Dermatology; Hospital Garcia da Orta; 2801-951 Almada Portugal
10. Department of Dermatology, Hospital de Santa Maria; Centro Hospitalar Lisboa Norte; 1649-035 Lisboa Portugal
11. Department of Dermatology, Hospital Egas Moniz; Centro Hospitalar Lisboa Ocidental; 1349-019 Lisboa Portugal
12. Department of Dermatology; Hospital CUF Infante Santo; 1350-070 Lisboa Portugal
13. Clinic of Dermatology, University Hospital and Faculty of Medicine; University of Coimbra; 3000-075 Coimbra Portugal