1.
Bulletin of the Pan American Health Organization (PAHO)
; 26(1): 67-79, 1992. Tab
Article
in English
| PAHO
| ID: pah-11180
2.
Bull. Pan Am. Health Organ
; 26(1): 67-79, 1992. tab
Article
in English
| LILACS
| ID: lil-371035
3.
Bulletin of the Pan American Health Organization (PAHO)
; 26(1),1992 Tab
Article
| PAHO-IRIS
| ID: phr-27053