@misc{indiciae754d1b9a5975,
  title = {Ankylosing spondylitis. Clinical features.},
  author = {S van der Linden and D van der Heijde},
  year = {1998},
  doi = {10.1016/s0889-857x(05)70036-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/9891705/},
  note = {Source identifier: 9891705}
}