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Ocampo AF, Biltoft C, Lucero M, Olander RM, Ugpo J, Auranen K, Soininen A, Nohynek H, Käyhty H.Ocampo AF, et al. Among authors: auranen k.Vaccine. 2007 Jan 8;25(4):605-11. doi: 10.1016/j.vaccine.2006.08.038. Epub 2006 Oct 12.Vaccine. 2007.PMID: 17079058Clinical Trial.