@misc{indiciaea15694ebde33,
  title = {Development of a COPD severity score.},
  author = {E Q Wu and H G Birnbaum and M Cifaldi and Y Kang and D Mallet and G Colice},
  year = {2006},
  doi = {10.1185/030079906x115621},
  url = {https://pubmed.ncbi.nlm.nih.gov/16968571/},
  note = {Source identifier: 16968571}
}