title: Summaries for Patients. Warning Symptoms May Prevent Some Cases of Sudden Cardiac Arrest.
mesh_terms: D002637:Chest Pain / Q000209:etiology; D004417:Dyspnea / Q000209:etiology; D006323:Heart Arrest / Q000175:diagnosis* / Q000401:mortality* / Q000517:prevention & control; D006801:Humans; D008875:Middle Aged; D015205:Northwestern United States / Q000453:epidemiology; D012307:Risk Factors; D013997:Time Factors