THE EFFECT OF EXERCISE AND OF FOUR COMMONLY USED DRUGS ON THE NORMAL HUMAN ELECTROCARDIOGRAM, WITH PARTICULAR REFERENCE TO T WAVE CHANGES

^{Cardiac Clinics and Laboratory, Massachusetts General Hospital, Boston}

Find articles by Hartwell, A. in: JCI | PubMed | Google Scholar

^{Cardiac Clinics and Laboratory, Massachusetts General Hospital, Boston}

Find articles by Burrett, J. in: JCI | PubMed | Google Scholar

^{Cardiac Clinics and Laboratory, Massachusetts General Hospital, Boston}

Find articles by Graybiel, A. in: JCI | PubMed | Google Scholar

^{Cardiac Clinics and Laboratory, Massachusetts General Hospital, Boston}

Find articles by White, P. in: JCI | PubMed | Google Scholar