TY  - RPRT
TI  - Doppler ultrasonic examination.
AU  - M D Kiviat
AU  - J D Ansell
PY  - 1976
DO  - 10.1016/0090-4295(76)90541-0
UR  - https://pubmed.ncbi.nlm.nih.gov/997063/
ID  - 997063
ER  -