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1by Celia Iriart, Howard Waitzkin, Jaime Breilh, Alfredo Estrada, Emerson Elías MerhyGet access
Published in Revista Panamericana de Salud Pública (2002)
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2by Miguel Suarez Hernandez, Carlos M. Fernandez Andreu, Alfredo Estrada Ortiz, Eugenio Cisneros DespaigneGet access
Published in Revista do Instituto de Medicina Tropical de São Paulo (1992)
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Article in Journal/Newspaper