@misc{indiciaecd308136ac53,
  title = {Practical experience with the peak flow meter.},
  author = {W LOCKHART and D H SMITH and A MAIR and W A WILSON},
  year = {1960},
  doi = {10.1136/bmj.1.5165.37},
  url = {https://pubmed.ncbi.nlm.nih.gov/14417800/},
  note = {Source identifier: 14417800}
}