1.
Washington, D.C; Pan Américan Health Organization; July 1992. 81 p. (PAHO/HMP/GDR-4/94.20).
Monography
in English
| LILACS
| ID: lil-371214
2.
s.l; Centers for Disease Control and Prevention (CDC); s.d. 57 p. tab.
Monography
in English
| LILACS
| ID: lil-297863