Clinical trials and the cost of medical care.
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D002309:Cardiology / Q000639:trends; D002317:Cardiovascular Agents / Q000191:economics; D002986:Clinical Trials as Topic / Q000639:trends*; D004358:Drug Therapy / Q000191:economics / Q000639:trends*; D019317:Evidence-Based Medicine / Q000191:economics / Q000639:trends*; D017048:Health Care Costs / Q000639:trends*; D006801:Humans
D002317:Cardiovascular Agents