title: Country cardiograms case 52.
authors.affiliation: Department of Medicine, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alta.
authors.forename: Inka
authors.initials: I
authors.lastname: Toman
authors.affiliation: Adult Cardiology, Division of Cardiology, Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Alta.
authors.forename: Brent M
authors.initials: BM
authors.lastname: McGrath
mesh_terms: D001919:Bradycardia / Q000175:diagnosis* / Q000601:surgery; D004562:Electrocardiography; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged