@misc{indiciaea1409afcff47,
  title = {Pyrophosphate arthropathy.},
  author = {I Machtey},
  year = {1971},
  doi = {10.1016/s0140-6736(71)91593-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/4101265/},
  note = {Source identifier: 4101265}
}