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Shen S, Campitelli MA, Calzavara A, Guttmann A, Kwong JC.Shen S, et al. Among authors: kwong jc.Vaccine. 2013 Jun 24;31(29):2974-8. doi: 10.1016/j.vaccine.2013.05.011. Epub 2013 May 18.Vaccine. 2013.PMID: 23688524