By Bolaños Hilda María   Acuña María Teresa   Serrano Ana María   Obando Xinia   Mairena Hazel   Cháves Lorena   Sandí Flor   Rodríguez Gina   Tamplin Mark L.   Pérez Enrique   Campos Elena   in Revista Panamericana de Salud Pública/Pan American Journal of Public Health

ISSN:1020-4989|16|4|233-241

Pan American Health Organization (PAHO)‎(2004)‎

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