title: By the way, doctor.  If you have chest pain or discomfort, how do you know if it is serious enough to warrant emergency medical attention?
authors.forename: John
authors.initials: J
authors.lastname: Nagurney
mesh_terms: D002637:Chest Pain / Q000175:diagnosis* / Q000628:therapy; D003937:Diagnosis, Differential; D004632:Emergency Medical Services; D006801:Humans; D009203:Myocardial Infarction / Q000175:diagnosis* / Q000628:therapy