1 Department of Dermatology, State University of Rio de Janeiro - UERJ, Rio de Janeiro, Brazil.
2 Preventive and Social Medicine Department, Federal University of Minas Gerais, Belo Horizonte, Brazil.
3 Department of Dermatology and Radiotherapy, Universidade Estadual Paulista - UNESP, Botucatu, Brazil.
4 Dermatology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy.
5 Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy.
6 Department of Internal Medicine and Medical Specialties, University of Rome "La Sapienza", Rome, Italy.
7 Dermatology Department, Trichology Unit, Ramón y Cajal University Hospital, Instituto Ramón y Cajal de Investigación Sanitaria, University of Alcalá, Madrid, Spain.