Determination of oxygenated, mixed venous blood carbon dioxide tension by a breath-holding method.

@article{Knowles1960DeterminationOO,
  title={Determination of oxygenated, mixed venous blood carbon dioxide tension by a breath-holding method.},
  author={John H Knowles and Walter S. Newman and Wallace O. Fenn},
  journal={Journal of applied physiology},
  year={1960},
  volume={15},
  pages={225-8}
}