title: The detection of unipolar and bipolar cardiac electrograms with a movable coaxial electrode.
mesh_terms: D000818:Animals; D016275:Atrial Function; D004285:Dogs; D004567:Electrodes, Implanted; D004594:Electrophysiology / Q000295:instrumentation* / Q000379:methods; D006321:Heart / Q000502:physiology*; D010138:Pacemaker, Artificial; D016276:Ventricular Function