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13by Juan Manuel Ospina-Díaz, Fred Gustavo Manrique - Abril, Nelly Esperanza Ariza RiañoGet full text
Published 2012-01-01
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14by JUAN MANUEL OSPINA DÍAZ, FRED GUSTAVO MANRIQUE ABRIL, JOSÉ ALFREDO GUÍO GARZÓNGet full text
Published 2010-06-01
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15by JUAN MANUEL OSPINA DÍAZ, FRED GUSTAVO MANRIQUE ABRIL, JOSÉ ALFREDO GUÍO GARZÓNGet full text
Published 2010-06-01
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19by Abel Fernando Martínez Martín, Juan Manuel Ospina Díaz, Fred Gustavo Manrique-Abril, Bernardo Francisco Meléndez AlvarezGet full text
Published 2009-12-01
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20by Fred Gustavo Manrique Abril, Juan Manuel Ospina Díaz, Nancy Astrid Vega Fuentes, Adriana Lisset Morales Pacheco, Giomar Herrera AmayaGet full text
Published 2012-03-01
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