@misc{indiciae0ee0281d1f6c,
  title = {Synovial tissue changes and rheumatoid factor in scleroderma.},
  author = {J A Clark and R K Winkelmann and F C McDuffie and L E Ward},
  year = {1971},
  url = {https://pubmed.ncbi.nlm.nih.gov/5546414/},
  note = {Source identifier: 5546414}
}