title: Exertional syncope caused by left main coronary artery spasm.
authors.affiliation: Metropolitan Cardiology Consultants, Coon Rapids, Minn.
authors.forename: E P
authors.initials: EP
authors.lastname: Havranek
authors.forename: D N
authors.initials: DN
authors.lastname: Dunbar
mesh_terms: D017023:Coronary Angiography; D003329:Coronary Vasospasm / Q000150:complications* / Q000000981:diagnostic imaging / Q000503:physiopathology; D004562:Electrocardiography; D015444:Exercise; D005080:Exercise Test; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction / Q000502:physiology; D013575:Syncope / Q000209:etiology*