@misc{indiciaeac8a33923228,
  title = {Expiratory obstruction in a circle system.},
  author = {R P Alston},
  year = {1987},
  doi = {10.1111/j.1365-2044.1987.tb05194.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/3688404/},
  note = {Source identifier: 3688404}
}