title: Recognition of asymptomatic arrhythmias during cardiac catheterization by means of a cathode ray oscilloscope, with report of four cases.
authors.forename: L A
authors.initials: LA
authors.lastname: SELVERSTONE
authors.forename: D L
authors.initials: DL
authors.lastname: FISHER
authors.forename: D L
authors.initials: DL
authors.lastname: DONOVAN
authors.forename: J A
authors.initials: JA
authors.lastname: CAMPBELL
mesh_terms: D001145:Arrhythmias, Cardiac; D006328:Cardiac Catheterization; D055984:Cathode Ray Tube; D006339:Heart Rate; D006801:Humans; D009200:Myocardial Contraction