@misc{indiciae9ab3780ef452,
  title = {End-tidal oxygen analysis using a synchronous pulse generator.},
  author = {V O Roberson and R Harry and H Hsiao and T Barnett},
  year = {1973},
  doi = {10.1152/jappl.1973.35.6.922},
  url = {https://pubmed.ncbi.nlm.nih.gov/4765834/},
  note = {Source identifier: 4765834}
}