Columbia subject headings:
Medical policy--Brazil--Congresses.
Poor--Medical care--Brazil--Congresses.
Public welfare--Brazil--Congresses.
Harvard subject headings:
Medical policy--Brazil--Congresses.
Poor--Medical care--Brazil--Congresses.
Public welfare--Brazil--Congresses.
Princeton subject headings:
Medical policy--Brazil--Congresses.
Poor--Medical care--Brazil--Congresses.
Public welfare--Brazil--Congresses.