@misc{indiciaef5aef949b5bb,
  title = {We need programs for chronic airway obstruction.},
  author = {T L Petty},
  year = {1970},
  doi = {10.1378/chest.57.2.204},
  url = {https://pubmed.ncbi.nlm.nih.gov/5411729/},
  note = {Source identifier: 5411729}
}