title: Medicare: coverage approved for participation in clinical trials.
authors.forename: J A
authors.initials: JA
authors.lastname: Hamill
mesh_terms: D014487:Centers for Medicare and Medicaid Services, U.S.; D002986:Clinical Trials as Topic / Q000191:economics*; D006801:Humans; D019458:Insurance Coverage / Q000191:economics*; D006278:Medicare / Q000191:economics*; D014481:United States