@misc{indiciae873bffdd0108,
  title = {Nine rheumatoid factor assays compared.},
  author = {J P Jaspers and R J Van Oers and B Leerkes},
  year = {1988},
  doi = {10.1515/cclm.1988.26.12.863},
  url = {https://pubmed.ncbi.nlm.nih.gov/3235959/},
  note = {Source identifier: 3235959}
}