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Published in 1990
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Published in 2002
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Published in 2004
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Published in 2002
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Published in 2002
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Published in 2004
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by Paredes, Nelly; Tapia B., César; Monteros, Alvaro; Tacán, Marcelo; Naranjo Quinaluisa, Edwin Jesús; Luna, Luis; Peña Monserrate, Geover Rolando; Andrade, Ricardo; Cáceres, Andrés; Borja Borja, Edwin José
Published in 2014
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