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1Publicado 1989“…Pan American Health Organization, Pan American Sanitary Bureau,…”
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2Publicado 1992“…Pan American Health Organization, Pan American Sanitary Bureau, Regional Office of the World Health Organization,…”
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3Publicado 1997“…Pan American Health Organization, Pan American Sanitary Bureau, Regional Office of the World Health Organization,…”
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4Publicado 1998“…Pan American Health Organization, Pan American Sanitary Bureau, Regional Office of the World Health Organization,…”
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5Publicado 1998“…Pan American Health Organization, Pan American Sanitary Bureau, Regional Office of the World Health Organization ; United Nations, Economic Commission for Latin America and the Caribbean,…”
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