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1Published in Revista Panamericana de Salud Pública (2002)Get access
Get access
Article in Journal/Newspaper -
2by Teodoro Barros, Dimitri Barreto, Freddy Pérez, Rocío Santander, Eduardo Yépez, Fernando Abad-Franch, Marcelo Aguilar V.Get access
Published 2001
Article in Journal/Newspaper