1.
Salud pública Méx
;
24(3): 259-267, 1982.
Article
in Spanish
| LILACS
| ID: lil-9982
2.
Salud pública Méx
;
24(3): 289-293, 1982.
Article
in Spanish
| LILACS
| ID: lil-9985
3.
Salud pública Méx
;
24(3): 295-302, 1982.
Article
in Spanish
| LILACS
| ID: lil-9986
4.
Salud pública Méx
;
24(3): 303-312, 1982.
Article
in Spanish
| LILACS
| ID: lil-9987
5.
Salud pública Méx
;
24(3): 313-319, 1982.
Article
in Spanish
| LILACS
| ID: lil-9988