Most drug freebies go to well-off: study. Research suggests race, gender a factor, too, but drug group calls research flawed.
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D004345:Drug Industry; D006302:Health Services Research; D054625:Healthcare Disparities; D006801:Humans; D040541:Marketing; D017057:Medically Uninsured; D004364:Pharmaceutical Preparations / Q000191:economics / Q000600:supply & distribution*; D014481:United States
D004364:Pharmaceutical Preparations