title: O'Leary testifies before Congressional hearings on patient safety.
mesh_terms: D006801:Humans; D007591:Joint Commission on Accreditation of Healthcare Organizations; D019221:Mandatory Reporting; D019300:Medical Errors / Q000517:prevention & control*; D011050:Policy Making; D011057:Politics; D017751:Safety Management; D018571:Sentinel Surveillance; D014481:United States