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Simpkins SD, Tulagan N, Lee G, Ma TL, Zarrett N, Vandell DL.Simpkins SD, et al.Dev Psychol. 2020 Dec;56(12):2281-2292. doi: 10.1037/dev0001113. Epub 2020 Oct 1.Dev Psychol. 2020.PMID: 33001668Free article.