1. Dermatology Department; University Hospital “Dr. José Eleuterio González”; Universidad Autónoma de Nuevo León; Monterrey México
2. Dermatology Department; Hospital do Servidor Público Municipal de São Paulo; São Paulo Brazil
3. Dermatology Department; Faculty of Medicine of ABC; São Paulo Brazil
4. Department of Dermatology; Inselspital; University of Bern; Bern Switzerland
5. Dermatology Clinic Dermaticum; Freiburg im Breisgau Germany
6. Centro de Dermatología Epidermis; Instituto CUF; Porto Portugal
7. Department of Dermatology; Academic Hospital; University of Gent; Gent Belgium