Pulsatility index, patent ductus arteriosus, and brain damage.

@article{Bejar1982PulsatilityIP,
  title={Pulsatility index, patent ductus arteriosus, and brain damage.},
  author={R. E. Bejar and Thurman A Merritt and Ronald W. Coen and Frank Mannino and Louis Gluck},
  journal={Pediatrics},
  year={1982},
  volume={69 6},
  pages={818-22}
}