@misc{indiciae1554dbf948e8,
  title = {Ankylosing spondylitis and sleep.},
  author = {M Tanfield},
  year = {1978},
  doi = {10.1016/s0140-6736(78)90727-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/76886/},
  note = {Source identifier: 76886}
}