Brésil (4) Education (4) éducation (3) Education (3) Birth (3) Parturition (3) Mothers (3) Manufacturers' agents (3) Labor (Obstetrics) (3) Commission merchants (3) Childbirth (3) Birth (3) cohorte (3) naissance (3) zone urbaine (2) temps (durée) (2) information (2) hôpital (2) santé (2) public (2) Children (2) Care (2) Methods (2) Time (2) Pregnancy (2) Population (2) Health (2) Children (2) Change (2) Methods (2)