1.
Rev. méd. IMSS
;
20(4): 451-6, 1982.
Article
in Spanish
| LILACS
| ID: lil-9453
2.
Rev. méd. IMSS
;
19(5): 591-2, 1981.
Article
in Spanish
| LILACS
| ID: lil-11448
3.
Rev. méd. IMSS
;
19(6): 715-7, 1981.
Article
in Spanish
| LILACS
| ID: lil-11572