Safety in the use of nitrs oxide: a modification of the standard anesthetic machine to eliminate sources of human error and system failure.

@article{Matteo1969SafetyIT,
  title={Safety in the use of nitrs oxide: a modification of the standard anesthetic machine to eliminate sources of human error and system failure.},
  author={Richard S. Matteo and A J Gissen and Anne S. Lee},
  journal={Anesthesiology},
  year={1969},
  volume={31 4},
  pages={361-9}
}