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Markowitz LE, Hariri S, Unger ER, Saraiya M, Datta SD, Dunne EF.Markowitz LE, et al. Among authors: datta sd.Vaccine. 2010 Jul 5;28(30):4731-7. doi: 10.1016/j.vaccine.2010.02.019. Epub 2010 Feb 25.Vaccine. 2010.PMID: 20188681Review.