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1by José Félix Restrepo, Federico Rondón, Mario Peña, Humberto Lizarazo, Renato Guzmán, Antonio IglesiasGet access
Published in Biomédica (1993)
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2by Sergio Guevara Pacheco, Humberto Lizarazo Peñalosa, Alvaro Sánchez, Mario Peña C., Antonio Iglesias GamarraGet access
Published in Biomédica (1992)
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Article in Journal/Newspaper