@misc{indiciaeb2b42f6e667f,
  title = {Spirometry in office practice: getting full measure from a useful tool.},
  author = {P B Francis},
  year = {1978},
  doi = {10.1080/00325481.1978.11714724},
  url = {https://pubmed.ncbi.nlm.nih.gov/628630/},
  note = {Source identifier: 628630}
}