1.
Rev. cuba. hig. epidemiol
; 13(1-2): 154-5, ene.-ago. 1975.
Article
in Spanish
| CUMED
| ID: cum-7480
2.
Rev. cuba. hig. epidemiol
; 13(1-2): 152-3, ene.-ago. 1975.
Article
in Spanish
| CUMED
| ID: cum-7479
3.
Rev. cuba. hig. epidemiol
; 13(1-2): 125, ene.-ago. 1975.
Article
in Spanish
| CUMED
| ID: cum-7466