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Published in 2004
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2
Published in 2002
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8
Published in 1991
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10
Published in 2004
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11
by Tapia B., César; Paredes Andrade, Nelly Judith; Naranjo Quinaluisa, Edwin Jesús; Tacán, Marcelo; Monteros, Alvaro; Pérez Ruíz, César Félix; Valverde Vanegas, Yolanda Marilú
Published in 2017
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12
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