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Emerg. infect. dis
;
10(1): 40-47, 2004.
Article
in English
| AIM
| ID: biblio-1261585
2.
Washington, D.C; Organización Panamericana de la Salud; feb. 1998. 66 p. ilus. (OPS/HCP/HCT/98.104).
Monography
in Spanish
| LILACS
| ID: lil-378996