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1Article of journalPublished in 2008Repositorio Universidad Nacional de Colombia
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2Article of journalPublished in 2011Repositorio Universidad Nacional de Colombia
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3Article of investigationPublished in 2011Repositorio Repositorio UdeA
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4Article of journalPublished in 2011Repositorio Universidad Nacional de Colombia
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5Article of journalPublished in 2010Repositorio Universidad Nacional de Colombia
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6Article of journalPublished in 2014Repositorio Universidad Nacional de Colombia
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7Article of journalPor Suárez Mahecha, Héctor; Pardo Carrasco, Sandra Clemencia; Cortés Rodríguez, Misael; Ricaurte, Sandra Catalina; Rojano, BenjamínPublished in 2009Repositorio Universidad Nacional de Colombia
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