Richard L. Heppner

Inotropic Effects of Electric Currents

Earl H. Wood, Richard L. Heppner, Silvio Weidmann · Circulation Research · 1969 · 305 citations

Cardiac Muscle, Electrohydrodynamics, Successive Action Potentials +19

The Emergence of Biological Organization

Richard L. Heppner · Europe PMC (PubMed Central) · 1965 · 116 citations

Biology, Emergent Phenomenon, Pattern Formation +5

Diagnosis of Obstructive Coronary Disease by Maximal Exercise and Atrial Pacing

Michael H. Kelemen, Ronald E. Gillilan, Richard J. Bouchard et al. · Circulation · 1973 · 58 citations · Full text

Maximal Exercise, Coronary Artery Disease, Acute Myocardial Infarction +19

Aortic regurgitation and aneurysm of sinus of Valsalva associated with osteogenesis imperfecta

Richard L. Heppner, Henry I. Babitt, Josette W. Bianchine et al. · The American Journal of Cardiology · 1973 · 30 citations

Orthopaedic Surgery, Osteogenesis Imperfecta, Aortic Regurgitation +1

Value of Reversed Saphenous Vein in Minimally Invasive Direct Coronary Artery Bypass Graft Procedures

Venkat R. Machiraju, Michael Culig, Richard L. Heppner et al. · The Annals of Thoracic Surgery · 1998 · 22 citations · Full text

Endovascular Technique, Vascular Surgery, Surgery +4