Use of multiple leads in fetal electrocardiography.

@article{Steerman1967UseOM,
  title={Use of multiple leads in fetal electrocardiography.},
  author={Ruth L Steerman and J S Garra and J B Calatayud},
  journal={The Medical annals of the District of Columbia},
  year={1967},
  volume={36 12},
  pages={736-40}
}