@misc{indiciaecf7392ddd394,
  title = {Chronic obstructive lung disease.},
  author = {A P Fishman},
  year = {1973},
  doi = {10.1016/0091-7435(73)90004-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/4547841/},
  note = {Source identifier: 4547841}
}