title: Atrial tachyarrhythmia with well-concealed 2:1 block-inadequacy of lead III as a "rhythm strip".
authors.affiliation: Cardiology Division, St. Vincent Hospital, Worcester Medical Center, Worcester, MA 01608-1320.
authors.forename: David H
authors.initials: DH
authors.lastname: Spodick
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001282:Atrial Flutter / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006325:Heart Atria / Q000503:physiopathology*; D006327:Heart Block / Q000175:diagnosis* / Q000503:physiopathology; D006339:Heart Rate; D006801:Humans; D008297:Male; D013610:Tachycardia / Q000175:diagnosis* / Q000503:physiopathology