@misc{indiciaef21bbe473db9,
  title = {Cardiorespiratory performance in systemic sclerosis.},
  author = {S Godfrey and B Higgs and R Bluestone},
  year = {1969},
  doi = {10.1136/ard.28.2.195},
  url = {https://pubmed.ncbi.nlm.nih.gov/5777252/},
  note = {Source identifier: 5777252}
}