title: 20th Annual scientific sessions of the North American Society of Pacing and Electrophysiology (NASPE). Toronto, Ontario, Canada. May 12-15, 1999. Abstracts.
mesh_terms: D000818:Animals; D002304:Cardiac Pacing, Artificial; D004594:Electrophysiology; D006321:Heart / Q000502:physiology*; D006801:Humans