1.
Bulletin of the Pan American Health Organization (PAHO)
; 27(1): 26-31, 1993. graf
Artigo
em Inglês
| PAHO
| ID: pah-13936
2.
Bull. Pan Am. Health Organ
; 27(1): 26-31, 1993. graf
Artigo
em Inglês
| LILACS
| ID: lil-371858
3.
Bulletin of the Pan American Health Organization (PAHO)
; 27(1),1993 graf
Artigo
| PAHO-IRIS
| ID: phr-27018
RESUMO
This article was also published in spanish in the Bol. Oficina Sanit. Panam, Vol. 113, No. 4, 1992