@misc{indiciae0cab6c418341,
  title = {Quality control in pulmonary function testing. A help or a hindrance?},
  author = {P M Tweeddale and S Merchant and M J Leslie and G J McHardy},
  url = {https://pubmed.ncbi.nlm.nih.gov/7074244/},
  note = {Source identifier: 7074244}
}