@misc{indiciaef098327ca2f7,
  title = {Antinuclear factor in pneumoconioses.},
  author = {K Y Kang and T Yagura and Y Yamamura},
  year = {1973},
  doi = {10.1056/nejm197301182880324},
  url = {https://pubmed.ncbi.nlm.nih.gov/4539171/},
  note = {Source identifier: 4539171}
}