Non-invasive technique for diagnosing congenital and acquired ventricular septal defects using directional Doppler ultrasound. Correlations with phasic flow velocity patterns of the shunt.

@article{Kalmanson1974NoninvasiveTF,
  title={Non-invasive technique for diagnosing congenital and acquired ventricular septal defects using directional Doppler ultrasound. Correlations with phasic flow velocity patterns of the shunt.},
  author={Daniel Kalmanson and J Aigueperse and Colette Veyrat and C Cornec and P Chiche},
  journal={British heart journal},
  year={1974},
  volume={36 5},
  pages={428-45}
}