Full text: Available Index: LILACS (Americas) Main subject: Pediatrics / Physicians' Offices / Ambulatory Care Facilities Limits: Adolescent / Child / Female / Humans / Male Language: Portuguese Journal: J. pediatr. (Rio J.) Journal subject: Pediatrics Year: 2003 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Federal de São Paulo/BR / Universidade Federal do Rio Grande do Sul/BR