Experimental studies on ultrasonic Doppler method in obstetrics.

@article{Takeuchi1970ExperimentalSO,
  title={Experimental studies on ultrasonic Doppler method in obstetrics.},
  author={Hiroshi Takeuchi and Tsugio Nakazawa and K Kumakiri and R Kusano},
  journal={Acta obstetrica et gynaecologica Japonica},
  year={1970},
  volume={17 1},
  pages={11-6}
}