Color doppler imaging and doppler spectral analysis in the spinal cord of normal dogs - Hudson, JA; Finn-Bodner, ST; Coates, JR; Sorjonen, DC; Simpson, ST; Wright, JC; Steiss, JE; Cox, NR; Vaughn, DM; Miller, SC; Brown, SA; Garrett, PD (Vet Radiol Ultrasound, 1995)