@misc{indiciae12d728c7afcc,
  title = {ELISA for rheumatoid factor.},
  author = {F T Willems and C C Klaasen de Kort},
  year = {1978},
  doi = {10.1016/s0140-6736(78)90285-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/76923/},
  note = {Source identifier: 76923}
}