Full text: Available Index: LILACS (Americas) Main subject: Labor, Obstetric / Delivery, Obstetric / Hospitals, Maternity Limits: Female / Humans / Pregnancy Language: Portuguese Journal: Cad. saúde pública Journal subject: Public Health / Toxicology Year: 2014 Type: Article Affiliation country: Brazil Institution/Affiliation country: Instituto Nacional de Saúde da Mulher da Criança e do Adolescente/BR