1. Department of Dermatology, Brazilian Society of Dermatology, Santo Antônio Hospital, Santa Casa de Midericórdia de Porto Alegre, Porto Alegre, RS, Brazil
2. Pediatric Dermatology Service, Department of Dermatology, Brazilian Society of Dermatology, Santo Antônio Hospital, Santa Casa de Midericórdia de Porto Alegre, Porto Alegre, RS, Brazil