title: ECG quiz . Is it pacemaker malfunction?
authors.forename: Edward T
authors.initials: ET
authors.lastname: Kim
authors.forename: Akash
authors.initials: A
authors.lastname: Makkar
authors.forename: Mohammad
authors.initials: M
authors.lastname: Saeed
authors.forename: Yochai
authors.initials: Y
authors.lastname: Birnbaum
mesh_terms: D000369:Aged, 80 and over; D003937:Diagnosis, Differential; D004562:Electrocardiography / Q000379:methods*; D004868:Equipment Failure; D019544:Equipment Failure Analysis / Q000379:methods*; D006801:Humans; D008297:Male; D010138:Pacemaker, Artificial; D017180:Tachycardia, Ventricular / Q000175:diagnosis* / Q000517:prevention & control*