title: Comparing the performance of the Unity VDD and Thera VDD pacing systems.
authors.forename: A B
authors.initials: AB
authors.lastname: Wagshal
authors.forename: I E
authors.initials: IE
authors.lastname: Ovsyshcher
mesh_terms: D018780:Body Surface Potential Mapping; D004562:Electrocardiography; D004567:Electrodes, Implanted; D004867:Equipment Design; D005500:Follow-Up Studies; D006325:Heart Atria; D006352:Heart Ventricles; D006801:Humans; D010138:Pacemaker, Artificial