@misc{indiciaeade60c38486e,
  title = {Testing for exercise limitation in obstructive lung disease.},
  author = {M Newton and K A Webb and D E O'Donnell},
  year = {1999},
  doi = {10.1378/chest.115.6.1755-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/10378586/},
  note = {Source identifier: 10378586}
}