title: Why do American drug companies spend more than $12 billion a year pushing drugs? Is it education or promotion? Characteristics of materials distributed by drug companies: four points of view.
authors.forename: S M
authors.initials: SM
authors.lastname: Wolfe
mesh_terms: D000329:Advertising; D001290:Attitude; D004345:Drug Industry / Q000191:economics / Q000193:education; D004363:Drug Utilization / Q000639:trends; D006801:Humans; D014481:United States; D014486:United States Food and Drug Administration