1.
Washington, D.C; Organización Panamericana de la Salud; 1996. 207 p. tab.
Monography
in Spanish
| LILACS
| ID: lil-376554
2.
Washington, D.C; Pan Américan Health Organization; 1994. 189 p. tab.
Monography
in English
| LILACS
| ID: lil-372914