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Slifer KJ, Demore M, Vona-Messersmith N, Pulbrook-Vetter V, Beck M, Dalhquist L, Bellipanni K, Johnson E.Slifer KJ, et al.Child Health Care. 2009 Jan 1;38(1):23-48. doi: 10.1080/02739610802615831.Child Health Care. 2009.PMID: 20717485Free PMC article.