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1by Ana María Ríos, Fernando de la Hoz, Aura Lucía Leal, Orlando Castillo, Elizabeth CastañedaGet access
Published in Revista Panamericana de Salud Pública (1999)
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2by Edilma Torrado, Elizabeth Castañeda, Fernando de la Hoz, Angela RestrepoGet access
Published in Biomédica (2000)
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3by Elizabeth Castañeda, Magaly Chinchilla, Martha Velandia, Fernando de la HozGet access
Published in Biomédica (1995)
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4
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5by Elizabeth Castañeda, Magaly Chinchilla, Martha Velandia, Fernando de la HozGet access
Published in Biomédica (1995)
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Article in Journal/Newspaper