Noninvasive recording of electrical activity in the PR segment in man.

@article{Vincent1978NoninvasiveRO,
  title={Noninvasive recording of electrical activity in the PR segment in man.},
  author={Robert Vincent and N. Stroud and R E Jenner and Michael John Murray English and D. J. Woollons and Douglas A. Chamberlain},
  journal={British heart journal},
  year={1978},
  volume={40 2},
  pages={124-30}
}