Health trends in the 1990s: tracking 10 years of "top 10 trends".
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D003695:Delivery of Health Care / Q000639:trends*; D018166:Health Care Reform / Q000639:trends; D019981:Health Care Sector / Q000639:trends; D006279:Health Maintenance Organizations / Q000639:trends; D007449:Investments / Q000639:trends; D014481:United States