THE VALIDITY OF THE ELECTROKYMOGRAPHIC METHOD FOR MEASUREMENT OF DIAMETER CHANGE OF THE AORTA AND PULMONARY ARTERY DURING CIRCULATORY DISTURBANCE

^{Robinette Foundation of the Hospital and the Moore School of Electrical Engineering, the University of Pennsylvania, Philadelphia}

The Heart Disease Demonstration Section of the U. S. Public Health Service provided the apparatus and part of the funds for this study.

Find articles by Kay, C. in: PubMed | Google Scholar

^{Robinette Foundation of the Hospital and the Moore School of Electrical Engineering, the University of Pennsylvania, Philadelphia}

The Heart Disease Demonstration Section of the U. S. Public Health Service provided the apparatus and part of the funds for this study.

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

^{Robinette Foundation of the Hospital and the Moore School of Electrical Engineering, the University of Pennsylvania, Philadelphia}

The Heart Disease Demonstration Section of the U. S. Public Health Service provided the apparatus and part of the funds for this study.

Find articles by Zinsser, H. in: PubMed | Google Scholar

^{Robinette Foundation of the Hospital and the Moore School of Electrical Engineering, the University of Pennsylvania, Philadelphia}

The Heart Disease Demonstration Section of the U. S. Public Health Service provided the apparatus and part of the funds for this study.

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