1.
Rev. Inst. Nac. Hig
; 18(3/4): 75-82, jul.-dic. 1985.
Article
in Spanish
| LILACS
| ID: lil-30823
2.
Rev. Inst. Nac. Hig
; 18(1/2): 67-80, ene.-jun. 1985.
Article
in Spanish
| LILACS
| ID: lil-1859