title: Does the absence of cardiac activity on ultrasonography predict failed resuscitation in cardiac arrest?
authors.forename: Brian
authors.initials: B
authors.lastname: Cohn
mesh_terms: D016887:Cardiopulmonary Resuscitation / Q000379:methods*; D004452:Echocardiography / Q000379:methods*; D006323:Heart Arrest / Q000000981:diagnostic imaging*; D006801:Humans; D019095:Point-of-Care Systems