1.
Article
| PAHO-IRIS
| ID: phr-40276
2.
Washington; OMS; c2001. 365 p.
Monography
in Spanish
| BVSNACUY
| ID: bnu-10931
3.
Washington, D.C; Organización Panamericana de la Salud; 2001. 365 p.
Monography
in Spanish
| LILACS
| ID: lil-381718