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Published in 2008
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3
Published in 2010
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5
Published in 1999
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Published in 2002
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by Motato Alarcón, Nelson; Pincay Menéndez, Joffre; Avellán Chancay, María del Carmen; Falcones Vélez, Mayra Katherine; Aveiga Villacís, Einsten Churchill
Published in 2016
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