1.
World health forum
; 12(1): 73-74, 1991.
Article
in English
| AIM
| ID: biblio-1273782
2.
Foro mundial de la salud
; 12(1): 78-79, 1991.
Article
in Spanish
| AIM
| ID: biblio-1262064
3.
Forum mond. santé
; 12(1): 82-83, 1991.
Article
in French
| AIM
| ID: biblio-1262107