@misc{indiciaeca895fdbaf3b,
  title = {Step changes in end-tidal CO2: methods and implications.},
  author = {G D Swanson and J W Bellville},
  year = {1975},
  doi = {10.1152/jappl.1975.39.3.377},
  url = {https://pubmed.ncbi.nlm.nih.gov/1176405/},
  note = {Source identifier: 1176405}
}