Ito, T [Use of a rate responsive pacemaker in sick sinus syndrome]. [electronic resource] - Kokyu to junkan. Respiration & circulation Jan 1993 - 63-7 p. digital Publication Type: English Abstract; Journal Article ISSN: 0452-3458 Subjects--Topical Terms: AgedAnaerobic ThresholdCardiac OutputFemaleHeart RateHumansMaleMiddle AgedOxygen ConsumptionPacemaker, ArtificialSick Sinus Syndrome--physiopathology