1.
Washington, D.C; Organización Panamericana de la Salud; mayo 1992. 141 p. ilus. (PAHO/HPP/HPS/94.6).
Monography
in Spanish
| LILACS
| ID: lil-370524
2.
Washington, D.C; Pan Américan Health Organization; Dec. 1991. 126 p. ilus. (HPA/HPA/2.91).
Monography
in English
| LILACS, MINSALCHILE
| ID: lil-370055