title: The "spiked helmet" sign: a new electrocardiographic marker of critical illness and high risk of death.
authors.forename: Laszlo
authors.initials: L
authors.lastname: Littmann
authors.forename: Michael H
authors.initials: MH
authors.lastname: Monroe
mesh_terms: D000328:Adult; D000368:Aged; D002423:Cause of Death; D016638:Critical Illness; D003937:Diagnosis, Differential; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis*; D012307:Risk Factors; D055815:Young Adult