1.
Gac. méd. Caracas
;
119(4): 341-343, oct.-dic. 2011.
Article
in Spanish
| LILACS
| ID: lil-701632
2.
Rev. cuba. salud pública
;
37(supl.5): 563-568, 2011.
Article
in Spanish
| LILACS
| ID: lil-615780