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1by Luis Gabriel Cuervo, Sandra Roca, María Nelcy Rodríguez, Jane Stein, Jorge Izquierdo, Amanda Trujillo, Mireya MoraGet access
Published in Revista Panamericana de Salud Pública (1999)
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2by Marcela Varona, Gloria Lucía Henao, Sonia Díaz, Angélica Lancheros, Álix Murcia, Nelcy Rodríguez, Víctor Hugo ÁlvarezGet access
Published in Biomédica (2009)
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Article in Journal/Newspaper