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Franco EL, Tsu V, Herrero R, Lazcano-Ponce E, Hildesheim A, Muñoz N, Murillo R, Sánchez GI, Andrus JK.Franco EL, et al.Vaccine. 2008 Aug 19;26 Suppl 11:L88-95. doi: 10.1016/j.vaccine.2008.05.026.Vaccine. 2008.PMID: 18945406Review.