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Mier N, Piziak V, Zuniga M, Sanchez E, Alonso AB, Acosta Gonzalez RI, Castillo Ruiz O, Ramírez de León JA.Mier N, et al. Among authors: ramirez de leon ja.Public Health Rep. 2005 Jul-Aug;120(4):472-5. doi: 10.1177/003335490512000417.Public Health Rep. 2005.PMID: 16025729Free PMC article.No abstract available.