1.
World health forum
; 12(1): 34-37, 1991.
Article
in English
| AIM
| ID: biblio-1273779
2.
Foro mundial de la salud
; 12(1): 36-39, 1991.
Article
in Spanish
| AIM
| ID: biblio-1262060
3.
Forum mond. santé
; 12(1): 38-41, 1991.
Article
in French
| AIM
| ID: biblio-1262104