@misc{indiciaec73fbe930e09,
  title = {Methotrexate for ankylosing spondylitis.},
  author = {J Chen and C Liu},
  year = {2004},
  doi = {10.1002/14651858.cd004524.pub2},
  url = {https://pubmed.ncbi.nlm.nih.gov/15266537/},
  note = {Source identifier: 15266537}
}