@misc{indiciaefa11f3a8aaf5,
  title = {Chronic bronchitis in an elderly population.},
  author = {Peter Lange and Jan Parner and Eva Prescott and Jørgen Vestbo},
  year = {2003},
  doi = {10.1093/ageing/afg108},
  url = {https://pubmed.ncbi.nlm.nih.gov/14600005/},
  note = {Source identifier: 14600005}
}