@misc{indiciae40d5543d765a,
  title = {Syndrome X and hyperventilation.},
  author = {N P Lewis and S J Hutchison and N Willis and A H Henderson},
  year = {1991},
  doi = {10.1136/hrt.65.2.94},
  url = {https://pubmed.ncbi.nlm.nih.gov/1907837/},
  note = {Source identifier: 1907837}
}