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Fombonne E, Goin-Kochel RP, O'Roak BJ; SPARK Consortium.Fombonne E, et al.Vaccine. 2020 Feb 11;38(7):1794-1803. doi: 10.1016/j.vaccine.2019.12.026. Epub 2020 Jan 8.Vaccine. 2020.PMID: 31924427Free PMC article.