@misc{indiciae8de138f8ce11,
  title = {Long-term changes in dyspnea, lung function, and exercise capacity in COPD patients.},
  author = {Vladimir A Hodgev and Stefan S Kostianev and Anahid A Torosian and Ivan B Yanev and Penka B Mandoulova},
  year = {2004},
  url = {https://pubmed.ncbi.nlm.nih.gov/15819452/},
  note = {Source identifier: 15819452}
}