@misc{indiciaec5f0d317f08d,
  title = {Decrease in serum nucleotide pyrophosphatase activity in ankylosing spondylitis.},
  author = {K Mori and T Chano and T Ikeda and S Ikegawa and Y Matsusue and H Okabe and Y Saeki},
  year = {2003},
  doi = {10.1093/rheumatology/keg031},
  url = {https://pubmed.ncbi.nlm.nih.gov/12509614/},
  note = {Source identifier: 12509614}
}