Columbia subject headings:
Birth control--India--Kerala--Statistics.
Children--Health and hygiene--India--Kerala--Statistics.
Demographic surveys--India--Kerala.
Fertility, Human--India--Kerala--Statistics.
Health surveys--India--Kerala.
Kerala (India)--Statistics, Vital.
Harvard subject headings:
Families--Health and hygiene--India--Kerala (State)--Statistics.
Families--Health and hygiene--India--Kerala--Statistics.
Health surveys--India--Kerala (State)--Statistics.
Health surveys--India--Kerala--Statistics.
Public health--India--Kerala (State)--Evaluation.
Public health--India--Kerala--Evaluation.
Princeton subject headings: