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López-Ordóñez T, Panzera F, Tun-Ku E, Ferrandis I, Ramsey JM.López-Ordóñez T, et al. Among authors: panzera f.Salud Publica Mex. 2009;51 Suppl 3:S410-23. doi: 10.1590/s0036-36342009000900007.Salud Publica Mex. 2009.PMID: 20464215Review.Spanish.