1. Relation of heart rate and systolic blood pressure to the onset of pain in angina pectoris;Robinson, B.F.;Circulation,1967
2. The quiz electrocardiogram: a new diagnostic and research technique for evaluating the relation between emotional stress and ischemic heart disease;Schiffer, F.; Hartley, L.H.; Schulman, C.L.; Abelmann, W.H.;Am Y Cardiol,1976
3. Exercise electrocardiography;Bruce, R.A.; Irvine, J.B.,1978
4. A new system of multiple-lead exercise electrocardiography;Mason, R.E.; Likar, I.;Am Heart J,1966
5. Predictive implications of stress testing: follow-up of 2700 subjects after maximum treadmill stress testing;Ellestad, M.H.; Wan, K.C.;Circulation; Bureau of the Census. Occupation by Industry. Census of Population 1970,1975