@misc{indiciae5fa54afe1467,
  title = {An exercise helmet for physiologic studies.},
  author = {S K Gupta},
  year = {1969},
  doi = {10.1097/00000542-196910000-00021},
  url = {https://pubmed.ncbi.nlm.nih.gov/5811608/},
  note = {Source identifier: 5811608}
}