Columbia subject headings:
Children--Mortality.
United States--Statistics, Medical.
United States--Statistics, Vital.
Harvard subject headings:
Children--Mortality
Infants--Mortality--United States
Mothers--Mortality
United States--Statistics, Medical
United States--Statistics, Vital
Princeton subject headings:
Children--Mortality.
Infants--Mortality--United States.
Mothers--Mortality.
United States--Statistics, Medical.
United States--Statistics, Vital.