1.
Rev. cuba. adm. salud
; 12(2): 159-65, abr.-jun. 1986.
Article
in Spanish
| LILACS
| ID: lil-51998
2.
Rev. cuba. adm. salud
; 12(2): 159-65, abr.-jun. 1986.
Article
in Spanish
| CUMED
| ID: cum-769