title: Pacemaker-mediated bigeminy: what is the mechanism?
authors: I Department of Cardiology and Hypertension, University Hospital, Kracow, Poland. mcjastrz@cyf-kr.edu.pl
authors: Marek
authors: M
authors: Jastrzebski
mesh_terms: D000369:Aged, 80 and over; D002304:Cardiac Pacing, Artificial / Q000379:methods*; D004562:Electrocardiography / Q000379:methods*; D005260:Female; D006801:Humans; D012804:Sick Sinus Syndrome / Q000175:diagnosis* / Q000517:prevention & control*