Columbia subject headings:
Harvard subject headings:
Childbirth--Ecuador--Statistics--Periodicals.
Ecuador--Statistics, Vital--Periodicals.
Fetal death--Ecuador--Statistics--Periodicals.
Mortality--Ecuador--Statistics--Periodicals.
Princeton subject headings:
Childbirth--Ecuador--Statistics--Periodicals.
Ecuador--Statistics, Vital--Periodicals.
Fetal death--Ecuador--Statistics--Periodicals.
Mortality--Ecuador--Statistics--Periodicals.
Periodicals.