Landzberg, J S Benefits of physiologic atrioventricular synchronization for pacing with an exercise rate response. [electronic resource] - The American journal of cardiology Jul 1990 - 193-7 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial ISSN: 0002-9149 Standard No.: 10.1016/0002-9149(90)90587-q doi Subjects--Topical Terms: AdultAgedAnaerobic ThresholdArrhythmias, Cardiac--physiopathologyCardiac Pacing, ArtificialEchocardiographyExercise TestFemaleHeart--physiopathologyHumansMaleMiddle AgedStroke Volume