@misc{indiciae8230c0d8b02c,
  title = {Breath-activated aerosol.},
  author = {G K Crompton},
  year = {1971},
  doi = {10.1136/bmj.2.5762.652-c},
  url = {https://pubmed.ncbi.nlm.nih.gov/5580735/},
  note = {Source identifier: 5580735}
}