A new method of calculating stroke volume, blood velocity in the ascending aorta and the work done by the heart.

@article{Burkhart1968ANM,
  title={A new method of calculating stroke volume, blood velocity in the ascending aorta and the work done by the heart.},
  author={K L Burkhart},
  journal={Bibliotheca cardiologica},
  year={1968},
  volume={21},
  pages={86-9}
}