1.
Foro mundial de la salud
; 11(2): 192-198, 1990.
Article
in Spanish
| AIM
| ID: biblio-1262046
2.
Forum mond. santé
; 11(2)1990.
Article
in French
| AIM
| ID: biblio-1262092
3.
World health forum
; 11(2): 192-198, 1990.
Article
in English
| AIM
| ID: biblio-1273767