@misc{indiciae6e15a0b52b48,
  title = {Advanced chronic obstructive pulmonary disease.},
  author = {N Ambrosino and A Ganassini and A Rossi},
  year = {1997},
  url = {https://pubmed.ncbi.nlm.nih.gov/9550870/},
  note = {Source identifier: 9550870}
}