@misc{indiciae080f37e20155,
  title = {Exercise training in chronic bronchitis.},
  author = {N Andersson},
  year = {1980},
  doi = {10.1136/bmj.280.6218.942},
  url = {https://pubmed.ncbi.nlm.nih.gov/7388388/},
  note = {Source identifier: 7388388}
}