@misc{indiciaeb3d5a4ca9099,
  title = {Chronic obstructive pulmonary disease (COPD).},
  author = {R M Senior and N R Anthonisen},
  year = {1998},
  doi = {10.1164/ajrccm.157.4.nhlbi-12},
  url = {https://pubmed.ncbi.nlm.nih.gov/9563773/},
  note = {Source identifier: 9563773}
}