R H Helfant

Contrasting ischemic contraction patterns by zone and layer in canine myocardium.

R. Helfant, J. Agarwal, W. Weintraub, 1982, The American journal of physiology.

Critical analysis of the application of Bayes' theorem to sequential testing in the noninvasive diagnosis of coronary artery disease.

R. Helfant, J. Agarwal, W. Weintraub, 1984, The American journal of cardiology.

Assessment of coronary artery stenoses by digital subtraction angiography: a pathoanatomic validation.

L. Klein, R. Helfant, J. Agarwal, 1987, American heart journal.

Catheter Technique for Recording His Bundle Activity in Man

B J Scherlag, E Stein, R. Helfant, 1969, Circulation.

Functional importance of the human coronary collateral circulation.

R Gorlin, P. Vokonas, R. Helfant, 1971, The New England journal of medicine.

Nuclear cardiology. I. Radionuclide angiographic assessment of left ventricular contraction: uses, limitations and future directions.

R. Helfant, M M Bodenheimer, V S Banka, 1980, The American journal of cardiology.

Are soft echoes really soft? Intravascular ultrasound assessment of mechanical properties in human atherosclerotic tissue.

V J Caiozzo, J. Tobis, R. Helfant, 1997, American heart journal.