Full text: Available Index: LILACS (Americas) Main subject: Reproductive Control Agents / Obstetrics and Gynecology Department, Hospital / Reproductive Rights Type of study: Prognostic study Limits: Humans Language: Spanish Journal: Rev. obstet. ginecol. Venezuela Journal subject: Gynecology / Obstetrics Year: 2012 Type: Article Affiliation country: Venezuela Institution/Affiliation country: Sociedad de Obstetricia y Ginecología de Venezuela/VE