1. Baan, J., Iwazumi, T., Szidon, J. P. andNoordergraaf, A. (1971) Intravascular area transducer measuring dynamic local distensibility of the aorta.J. Appl. Physiol.,31, 499–503.
2. Bertram, C. D. (1974) Ultrasonic arterial diameter measurement.J. Physiol. 241, 85–87.
3. Burington, R. S. (1933)Handbook of mathematical tables and formulas. Handbook Publishers, Sandusky, Ohio.
4. Geddes, L. A. (1970)The direct and indirect measurement of blood pressure. Year Book Publishers, Chicago.
5. Glassen, O. (1950) Circulatory system: arterial pulse; and, Elasticity of body tissues.Medical Physics, vol. 2. Year Book Publishers, Chicago, 180–188 and 305–316.