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Liao Y, Bang D, Cosgrove S, Dulin R, Harris Z, Taylor A, White S, Yatabe G, Liburd L, Giles W; Division of Adult and Community Health, National Center for Chronic Disease Prevention and Health Promotion; Centers for Disease Control and Prevention (CDC).Liao Y, et al.MMWR Surveill Summ. 2011 May 20;60(6):1-44.MMWR Surveill Summ. 2011.PMID: 21597458Free article.