@misc{indiciae7d68b6600255,
  title = {Serial pulmonary function tests in progressive systemic sclerosis.},
  author = {L R Bagg and D T Hughes},
  year = {1979},
  doi = {10.1136/thx.34.2.224},
  url = {https://pubmed.ncbi.nlm.nih.gov/483189/},
  note = {Source identifier: 483189}
}