1.
World health forum
;
12(1): 29-33, 1991.
Article
in English
| AIM
| ID: biblio-1273783
2.
Foro mundial de la salud
;
12(1): 31-35, 1991.
Article
in Spanish
| AIM
| ID: biblio-1262063
3.
Forum mond. santé
;
12(1): 33-37, 1991.
Article
in French
| AIM
| ID: biblio-1262108