@misc{indiciaead856a7a0ea2,
  title = {Ten years' experience in running a pulmonary function laboratory.},
  author = {D T Hughes and D W Empey},
  year = {1972},
  doi = {10.1136/bmj.4.5838.470},
  url = {https://pubmed.ncbi.nlm.nih.gov/4653878/},
  note = {Source identifier: 4653878}
}