title: The spitting image of a heart attack.
authors.affiliation: San Antonio Fire Department, Office of the Medical Director, USA.
authors.forename: David A
authors.initials: DA
authors.lastname: Wampler
authors.forename: Geoffrey
authors.initials: G
authors.lastname: Smith
authors.forename: Jeremy
authors.initials: J
authors.lastname: McElroy
authors.forename: Spencer W
authors.initials: SW
authors.lastname: Redding
authors.forename: Craig
authors.initials: C
authors.lastname: Manifold
mesh_terms: D004632:Emergency Medical Services; D006801:Humans; D009203:Myocardial Infarction / Q000175:diagnosis*; D012463:Saliva / Q000737:chemistry*