[Proceedings: Postoverdrive suppression in sick sinus syndrome].
D000818:Animals; D001146:Arrhythmia, Sinus / Q000503:physiopathology*; D002417:Cattle; D004285:Dogs; D006325:Heart Atria / Q000503:physiopathology*; D006329:Heart Conduction System / Q000503:physiopathology*