by Hiro, Takafumi, Leung, Cyril Y., De Guzman, Sarah, Caiozzo, Vincent J., Farvid, Ali R., Karimi, Houshang, Helfant, Richard H., Tobis, Jonathan M.
Published in The American heart journal (1997)

by Barath, Peter, Fishbein, Michael C., Cao, Jin, Berenson, James, Helfant, Richard H., Forrester, James S.
Published in The American journal of cardiology (01.02.1990)

by CERCEK, B, FISHBEIN, M. C, FORRESTER, J. S, HELFANT, R. H, FAGIN, J. A
Published in Circulation research (01.06.1990)

by Helfant, Richard H.
Published in The American journal of cardiology (19.06.1990)

by Denton, Timothy A., Diamond, George A., Helfant, Richard H., Khan, Steven, Karagueuzian, Hrayr
Published in The American heart journal (01.12.1990)

by Akaishi, M, Schneider, R M, Mercier, R J, Agarwal, J B, Helfant, R H, Weintraub, W S
Published in The American journal of physiology (01.05.1986)

by Iskandrian, A S, Heo, J, Helfant, R H, Segal, B L
Published in Annals of internal medicine (01.12.1987)

by Klein, Lloyd W., Helfant, Richard H.
Published in Progress in cardiovascular diseases (01.11.1986)

by GESSMAN, L. J, AGARWAL, J. B, ENDO, T, HELFANT, R. H
Published in Circulation (New York, N.Y.) (01.09.1983)

by Banka, V S, Agarwal, J B, Bodenheimer, M M, Helfant, R H
Published in Circulation (New York, N.Y.) (01.11.1981)

by Helfant, R H, De Villa, M A, Meister, S G
Published in Circulation (New York, N.Y.) (01.12.1971)

by Banka, V S, Bodenheimer, M M, Shah, R, Helfant, R H
Published in Circulation (New York, N.Y.) (01.04.1976)

by Helfant, Richard H.
Published in The American journal of medicine (25.04.1986)

by RUBINSTEIN, R. I, ASKENASE, A. D, THICKMAN, D, FELDMAN, M. S, AGARWAL, J. B, HELFANT, R. H
Published in Circulation (New York, N.Y.) (01.10.1987)

by Helfant, Richard H
Published in The American heart journal (01.09.1982)

by Banka, V S, Yamazaki, H, Agarwal, J B, Bodenheimer, M M, Helfant, R H
Published in Circulation (New York, N.Y.) (01.06.1982)

by Akaishi, Makoto, Weintraub, William S, Schneider, Ricky M, Klein, Lloyd W, Agarwal, Jai B, Helfant, Richard H
Published in Circulation research (01.02.1986)

by Helfant, R H
Published in American family physician (01.11.1971)

by AKAISHI, MAKOTO, SCHNEIDER, RICKY M, SEELAUS, PAUL A, KLEIN, LLOYD W, AGARWAL, JAI B, HELFANT, RICHARD H, WEINTRAUB, WILLIAM S
Published in Cardiovascular research (01.12.1988)

by GOMBERG, J, SISK, P, PARR, G. V. S, HELFANT, R. H
Published in The American journal of cardiology (01.06.1987)