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9by Arango Julia, Agostini Adela, Silvestre Alejandro, Yaafar Marcela, López Clara, Fishmann HildaGet access
Published 1997
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11by Luis A. Merino, Gabriela E. Hreñuk, María C. Ronconi, José M. AlonsoGet access
Published in Revista Panamericana de Salud Pública (2004)
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