@misc{indiciaeb8ab02adb350,
  title = {Differences between peak flow meters on prescription.},
  author = {N C Nicholas},
  year = {1991},
  doi = {10.1136/bmj.303.6795.186-c},
  url = {https://pubmed.ncbi.nlm.nih.gov/1831683/},
  note = {Source identifier: 1831683}
}