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8by Adriana Gómez Enríquez, Hernán Rojas Palacios, Franco Alirio Vallejo Cabrera, Edgar Iván Estrada SalazarGet full text
Published 2010-10-01
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12by Nelson Enrique Casas Leal, Edwin Fernando Restrepo Salazar, Franco Alirio Vallejo Cabrera, Edgar Iván Estrada SalazarGet full text
Published 2008-12-01
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13by Franco Alirio Vallejo C, Diosdado Baena G, Sanín Ortiz G., Edgar Iván Estrada S, Dora Enith Tobar T.Get full text
Published 2010-04-01
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14by Edgar Iván Estrada Salazar, Franco Alirio Vallejo Cabrera, Diosdado Baena García, Sanin Ortiz Grisales, Eleonora Zambrano BlancoGet full text
Published 2010-04-01
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16by Diosdado Baena García, Sanín Ortiz Grisales, Magda Piedad Valdés Restrepo, Edgar Iván Estrada Salazar, Franco Alirio Vallejo CabreraGet full text
Published 2010-07-01
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