Localization and significance of atrioventricular block.

@article{Dreifus1971LocalizationAS,
  title={Localization and significance of atrioventricular block.},
  author={Leonard S Dreifus and Yoshiko Watanabe},
  journal={American heart journal},
  year={1971},
  volume={82 4},
  pages={435-8}
}