2) Fronek, A., Johansen, K. H., Dilley, R. B. and Bernstein, E. F.: Noninvasive physiologic tests in the diagnosis and characterization of peripheral arterial occlusive disease. Amer. J. Surg., 126: 205-214 (1973).
5) Marinelli, M. R., Beach, K. W., Glass, M. J., Primozich, J. F. and Strandness, D. E.: Noninvasive testing vs. clinical evaluation of arterial disease. J. A. M. A., 241: 2031-2034 (1979).