Columbia subject headings:
Harvard subject headings:
Indians of South America--Health and hygiene--Ecuador--Congresses.
Indians of South America--Medicine--Ecuador--Congresses.
Medical policy--Ecuador--Congresses.
Public health--Ecuador--Congresses.
Princeton subject headings:
Indians of South America--Health and hygiene--Ecuador--Congresses.
Indians of South America--Medicine--Ecuador--Congresses.
Medical policy--Ecuador--Congresses.
Public health--Ecuador--Congresses.