Comparative evaluation of sublingual long-acting nitrates.

@article{Klaus1973ComparativeEO,
  title={Comparative evaluation of sublingual long-acting nitrates.},
  author={A P Klaus and Barry Lewis Zaret and Bertram Pitt and Robert S Ross},
  journal={Circulation},
  year={1973},
  volume={48 3},
  pages={519-25}
}