@misc{indiciaeaab7469c567b,
  title = {Matching inhalers and spacer devices.},
  author = {G K Crompton and K Prowse},
  year = {1994},
  doi = {10.1136/bmj.309.6968.1584a},
  url = {https://pubmed.ncbi.nlm.nih.gov/7819921/},
  note = {Source identifier: 7819921}
}