1.
Vet. Méx
;
24(3): 239-41, jul.-sept. 1993. tab
Article
in Spanish
| LILACS
| ID: lil-139046
2.
Vet. Méx
;
23(4): 343-5, oct.-dic. 1992. tab
Article
in Spanish
| LILACS
| ID: lil-118389