Author： Solana-Arellano Elvia Villegas-Arrizón Ascencio Legorreta-Soberanis José Cárdenas-Turanzas Marylou Enzaldo de la Cruz José Andersson Neil
Publisher： Pan American Health Organization (PAHO)
ISSN： 1020-4989
Source： Revista Panamericana de Salud Pública/Pan American Journal of Public Health, Vol.23, Iss.1, 2008-01, pp. : 44-51
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