TY  - BOOK
AU  - Chelala,César A.
ED  - Pan American Health Organization.
TI  - La salud materna: un perenne desaf'io 
SN  - 9275320500
PY  - 1991///
CY  - Washington, D.C.
PB  - Organizaci'on Panamericana de la Salud
KW  - Maternal health services
KW  - Maternal welfare
KW  - Prenatal care
KW  - Caribbean region
KW  - Latin America
N1  - DC.PAHO
ER  -