title: Changes in medical therapy during the past half century.
mesh_terms: D004358:Drug Therapy / Q000639:trends; D006801:Humans; D009026:Mortality; D011314:Preventive Health Services / Q000639:trends; D013514:Surgical Procedures, Operative / Q000639:trends; D013812:Therapeutics / Q000639:trends*; D014481:United States