@misc{indiciae23ef185d7797,
  title = {Ankylosing spondylitis.},
  author = {D K Sambrook},
  year = {1972},
  doi = {10.1136/bmj.3.5817.46},
  url = {https://pubmed.ncbi.nlm.nih.gov/5039559/},
  note = {Source identifier: 5039559}
}