1.
World Health Forum
; 11(4): 359-66, 1990.
Article
in English
| MEDLINE
| ID: mdl-2092678
2.
Article
in French
| WHO IRIS
| ID: who-49687
3.
Article
in Spanish
| WHO IRIS
| ID: who-46658
4.
Article
in English
| WHO IRIS
| ID: who-45487
5.
World Health Forum (WHO)
; 11(4): 359-66, 1990.
Article
in English
| PAHO
| ID: pah-9817
6.
Foro Mundial de la Salud (OMS)
; 11(4): 364-71, 1990.
Article
in Spanish
| PAHO
| ID: pah-10159