Subject
Prenatal care
Childbirth
6
United States
5
Birth weight, Low
3
Childbirth Economic aspects
2
Health surveys
2
Illegitimacy
2
Mothers
2
Pregnant women Alcohol use
2
Pregnant women Tobacco use
2
Unmarried mothers
2
Birth certificates
1
Children Health and hygiene
1
Dental care
1
Federal aid to maternal health services
1
Maternal and infant welfare
1
Maternal health services
1
Parents
1
Parents Education
1
Pregnancy
1
Pregnant women Drug use
1