@misc{indiciae12235c238a89,
  title = {Pulmonary function testing: a practical guide to its use in pediatric practice.},
  author = {H Eigen},
  year = {1986},
  doi = {10.1542/pir.7-8-235},
  url = {https://pubmed.ncbi.nlm.nih.gov/3331438/},
  note = {Source identifier: 3331438}
}