title: Internal cardiac massage.
authors: M A
authors: MA
authors: Garza
mesh_terms: D018795:Device Approval; D004554:Electric Countershock / Q000295:instrumentation* / Q000639:trends; D004632:Emergency Medical Services / Q000379:methods* / Q000639:trends; D006336:Heart Massage / Q000295:instrumentation* / Q000379:methods / Q000639:trends; D006801:Humans; D016032:Randomized Controlled Trials as Topic; D014481:United States; D014486:United States Food and Drug Administration