1.
Washington, DC; Organización Panamericana de la Salud; 2008. 285 p.
Monography
in Spanish
| LILACS
| ID: lil-589668
2.
Washington, D.C; Pan Américan Health Organization; 2000. 5 p. (HCT/IMCI/50.5/168.00).
Monography
in English
| LILACS
| ID: lil-381267
3.
Arequipa; UNSA; 1985. 68 p. ilus.
Thesis
in Spanish
| LILACS
| ID: lil-191778