New deal for old hearts.
Boon
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D000367:Age Factors; D000368:Aged; D002304:Cardiac Pacing, Artificial; D006348:Cardiac Surgical Procedures; D006299:Health Services for the Aged; D006331:Heart Diseases / Q000628:therapy*; D006801:Humans; D015912:Thrombolytic Therapy; D006113:United Kingdom