A Spectrum of Doppler Waveforms in the Carotid and Vertebral Arteries
2 Department of Radiology, University of Wisconsin, E3/311, 600 Highland Ave., Madison, WI 53792-3252.
3 Department of Radiology, Duke University Medical Center, Rm. 2526 Blue Zone, Box 3808, Durham, NC 27710.
Received March 2, 2001; accepted after revision April 28, 2003.
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