@misc{indiciaee95c0ae061e1,
  title = {COPD exacerbations .1: Epidemiology.},
  author = {G C Donaldson and J A Wedzicha},
  year = {2006},
  doi = {10.1136/thx.2005.041806},
  url = {https://pubmed.ncbi.nlm.nih.gov/16443707/},
  note = {Source identifier: 16443707}
}