@misc{indiciaee1a188d7303c,
  title = {The inspiratory to end-tidal oxygen difference during exercise.},
  author = {J Bengtsson and J P Bengtson},
  year = {1997},
  doi = {10.1007/bf03356566},
  url = {https://pubmed.ncbi.nlm.nih.gov/9451571/},
  note = {Source identifier: 9451571}
}