title: Cardiac arrest systems and survival after sudden cardiac arrest.
authors: Bryan
authors: B
authors: McNally
authors: Marcus E H
authors: ME
authors: Ong
mesh_terms: D016757:Death, Sudden, Cardiac / Q000453:epidemiology*; D004630:Emergencies / Q000453:epidemiology*; D004636:Emergency Service, Hospital / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male