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Cook S, Drum ML, Kirchhoff AC, Jin L, Levie J, Harrison JF, Lippold SA, Schaefer CT, Chin MH.Cook S, et al.J Health Care Poor Underserved. 2006 Feb;17(1):70-85. doi: 10.1353/hpu.2006.0021.J Health Care Poor Underserved. 2006.PMID: 16520513