@misc{indiciae4e9f0c4c3c13,
  title = {Long-term exercise therapy for chronic obstructive lung disease.},
  author = {D J Mertens and R J Shephard and T Kavanagh},
  year = {1978},
  doi = {10.1159/000193865},
  url = {https://pubmed.ncbi.nlm.nih.gov/414316/},
  note = {Source identifier: 414316}
}