Health system reform and clinical research.
Coleman
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D002986:Clinical Trials as Topic / Q000191:economics*; D018166:Health Care Reform / Q000191:economics*; D006801:Humans; D008329:Managed Care Programs / Q000191:economics* / Q000639:trends; D008495:Medical Oncology / Q000191:economics / Q000639:trends; D012106:Research / Q000191:economics / Q000639:trends; D014481:United States