1. Slowing of the heart rate by artificial electrical stimulation with pulses of long duration in the dog;Lopez;Circulation,1963
2. Slowing of the heart by paired pulse pacemaking;Chardack;Am. J. Cardiol.,1964
3. Effect of continuous postextrasystolic potentiation on the acutely failed dog heart;Scherlag;Physiologist,1964
4. Sustained, paired electrical stimuli. Slowing of the ventricular rate and augmentation of contractile force;Braunwald;Am. J. Cardiol.,1964
5. Treatment of acute heart failure by maintained postextrasystolic potentiation;Cranefield;Bull. New York Acad. Med.,1964