@misc{indiciaecc6d579cbcc0,
  title = {Screening and early intervention for COPD.},
  author = {G T Ferguson and T L Petty},
  year = {1998},
  doi = {10.3810/hp.1998.04.89},
  url = {https://pubmed.ncbi.nlm.nih.gov/9562834/},
  note = {Source identifier: 9562834}
}