@misc{indiciae8ae1512a759a,
  title = {The pulmonary function test: cautious overinterpretation.},
  author = {J Butler},
  year = {1981},
  doi = {10.1378/chest.79.5.498},
  url = {https://pubmed.ncbi.nlm.nih.gov/7226927/},
  note = {Source identifier: 7226927}
}