1. Department of Dermatology University of State of Rio de Janeiro Rio de Janeiro Brazil
2. Center for Dermatology and Hair Diseases Zurich Wallisellen Switzerland
3. Department of Dermatology Fluminense Federal University, University Hospital Antonio Pedro Niteroi Brazil
4. Department of Dermatology, Santa Casa de Misericordia do Recife Recife Brazil
5. Department of Preventive and Social Medicine Federal University of Minas Gerais Belo Horizonte Brazil