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Hemphill SA, Heerde JA, Scholes-Balog KE, Smith R, Herrenkohl TI, Toumbourou JW, Catalano RF.Hemphill SA, et al. Among authors: heerde ja.J Early Adolesc. 2014 Apr 1;34(3):360-386. doi: 10.1177/0272431613491830.J Early Adolesc. 2014.PMID: 25132702Free PMC article.