@misc{indiciae2200d2c706c0,
  title = {Letter: Early-warning test for syphilis.},
  author = {R E Kaufman and J C Feeley and G H Reynolds},
  year = {1974},
  doi = {10.1016/s0140-6736(74)92450-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/4129727/},
  note = {Source identifier: 4129727}
}