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R H Helfant

Circulation

Showing results (1-10 of 31) with videos related to

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Circulation|September 1, 1990
Stable angina pectoris. Risk stratification and therapeutic optionsR H Helfant
Circulation|May 1, 1971
Abnormalities of left ventricular contraction induced by beta adrenergic blockadeR H Helfant, M V Herman
Circulation|November 1, 1975
Electrophysiologic effects of coronary occlusion and reperfusion. Observations of dispersion of refractoriness and ventricular automaticityR Levites, V S Banka, R H Helfant
Circulation|September 1, 1972
His bundle electrogram. A critical appraisal of its uses and limitationsB J Scherlac, P Samet, R H Helfant
Circulation|December 1, 1975
Electrophysiologic effects of nitroglycerin during experimental coronary occlusionR Levites, M M Bodenheimer, R H Helfant
Circulation|August 1, 1973
Differentiation of "A-V junctional rhythms"B J Scherlag, R Lazzara, R H Helfant
Circulation|October 1, 1974
Determinants of reversible asynergy. Effect of pathologic Q waves, coronary collaterals, and anatomic locationV S Banka, M M Bodenheimer, R H Helfant
Circulation|April 1, 1974
Rate dependent ventricular ectopia following acute coronary occlusion. The concept of an optimal antiarrhythmic heart rateK D Chadda, V S Banka, R H Helfant
Circulation|November 1, 1975
Determinants of reversible asynergy. The native coronary circulationV S Banka, M M Bodenheimer, R H Helfant
Circulation|December 1, 1971
Effect of sustained isometric handgrip exercise on left ventricular performanceR H Helfant, M A De Villa, S G Meister
Pageof 4

Showing results (1-10 of 31) with videos related to

Sort By:
Pageof 4
Circulation|September 1, 1990
Stable angina pectoris. Risk stratification and therapeutic optionsR H Helfant
Circulation|May 1, 1971
Abnormalities of left ventricular contraction induced by beta adrenergic blockadeR H Helfant, M V Herman
Circulation|November 1, 1975
Electrophysiologic effects of coronary occlusion and reperfusion. Observations of dispersion of refractoriness and ventricular automaticityR Levites, V S Banka, R H Helfant
Circulation|September 1, 1972
His bundle electrogram. A critical appraisal of its uses and limitationsB J Scherlac, P Samet, R H Helfant
Circulation|December 1, 1975
Electrophysiologic effects of nitroglycerin during experimental coronary occlusionR Levites, M M Bodenheimer, R H Helfant
Circulation|August 1, 1973
Differentiation of "A-V junctional rhythms"B J Scherlag, R Lazzara, R H Helfant
Circulation|October 1, 1974
Determinants of reversible asynergy. Effect of pathologic Q waves, coronary collaterals, and anatomic locationV S Banka, M M Bodenheimer, R H Helfant
Circulation|April 1, 1974
Rate dependent ventricular ectopia following acute coronary occlusion. The concept of an optimal antiarrhythmic heart rateK D Chadda, V S Banka, R H Helfant
Circulation|November 1, 1975
Determinants of reversible asynergy. The native coronary circulationV S Banka, M M Bodenheimer, R H Helfant
Circulation|December 1, 1971
Effect of sustained isometric handgrip exercise on left ventricular performanceR H Helfant, M A De Villa, S G Meister
Pageof 4