Effect of Coronary Perfusion Pressure or Coronary Flow on Oxygen Usage of the MyocardiumGregg, Donald E. Ph.D., M.D.Author informationDepartment of Cardiorespiratory Diseases, Walter Reed Institute of Research, Walter Reed Army Medical Center Washington, D.C.Received for Publication July 11, 1963.Circulation Research 13(6):p 497-500, December 1963.Copyright © 1963 American Heart Association, Inc.