@misc{indiciae1e0addd7b695,
  title = {'Sequential' ELISA for anti-HIV should not replace the standard competitive method.},
  author = {P Challis and B C Dow and R Mitchell and A Barr and J A Barbara},
  year = {1988},
  doi = {10.1111/j.1423-0410.1988.tb04706.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/3218171/},
  note = {Source identifier: 3218171}
}