@misc{indiciaecffa9e1ec39b,
  title = {Computer assisted spirometry.},
  author = {D J Hansen and V M Toy and R A Deininger and T K Collopy},
  year = {1983},
  doi = {10.1080/15298668391405067},
  url = {https://pubmed.ncbi.nlm.nih.gov/6881062/},
  note = {Source identifier: 6881062}
}