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1by Wellington Forte Alves, Sérgio Botelho Guimarães, Paulo Roberto Cavalcante de Vasconcelos, Paulo Roberto Leitão de VasconcelosGet full text
Published 2003-06-01
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2by Sonia Elizabeth Lopez Carrillo, Sérgio Botelho Guimarães, Paulo Roberto Cavalcante de Vasconcelos, Paulo Roberto Leitão de VasconcelosGet full text
Published 2006-08-01
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3by Rômulo Cesar Costa Barbosa, Sergio Botelho Guimarães, Paulo Roberto Cavalcante de Vasconcelos, Carolyne Rolim Chaves, Paulo Roberto Leitão de VasconcelosGet full text
Published 2003-12-01
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