@misc{indiciae83bb08b7ced8,
  title = {Regional lung function in ankylosing spondylitis.},
  author = {R M Stewart and J B Ridyard and J D Pearson},
  year = {1976},
  doi = {10.1136/thx.31.4.433},
  url = {https://pubmed.ncbi.nlm.nih.gov/968800/},
  note = {Source identifier: 968800}
}