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Published in 2010
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Published in 2010
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Published in 2004
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Published in 2010
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Published in 1999
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by Barrera, Víctor Hugo; Pumisacho, Manuel; Escudero, Luis; Yumisaca, Fausto; Monar B., Carlos; Norton, George W.; Alwang, Jeffrey; Sherwood, Stephen
Published in 2002
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by Mazón, Nelson; Peralta I., Eduardo; Murillo I., Angel; Falconí-Castillo, Esteban; Monar B., Carlos; Subía G., Cristian; Estrella Sandoval, Ana Paola; Pinzón Z., José
Published in 2007
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