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Graff M, North KE, Richardson AS, Young KM, Mohlke KL, Lange LA, Lange EM, Harris KM, Gordon-Larsen P.Graff M, et al.Pediatr Obes. 2013 Dec;8(6):e74-9. doi: 10.1111/j.2047-6310.2013.00195.x. Epub 2013 Aug 30.Pediatr Obes. 2013.PMID: 24039247Free PMC article.