1.
Rev Peru Med Exp Salud Publica
; 30(2): 349-50, 2013 Apr.
Article
in Spanish
| MEDLINE
| ID: mdl-23949530
2.
Rev. peru. med. exp. salud publica
; 30(2): 349-350, abr.-jun. 2013. ilus, graf, tab
Article
in Spanish
| LILACS, LIPECS
| ID: lil-681006