by Eising, G P, Hammond, H K, Helmer, G A, Gilpin, E, Ross, Jr, J
Published in The American journal of physiology (01.12.1994)

by ROTH, D. A, URASAWA, K, HELMER, G. A, HAMMOND, H. K
Published in The Journal of clinical investigation (01.03.1993)

by HELMER, G. A, DAN MCKIRNAN, M, SHABETAI, R, BOSS, G. R, ROSS, J. R, KIRK HAMMOND, H
Published in Circulation (New York, N.Y.) (01.11.1996)

by NOZAKI, S, DEMARIA, A. N, HELMER, G. A, HAMMOND, H. K
Published in Circulation (New York, N.Y.) (01.11.1995)

by Toomasian, J M, Helmer, G A, Zeme, M I, Oltean, J N, Oran, A D, Bartlett, R H
Published in Transactions - American Society for Artificial Internal Organs (1983)