@misc{indiciae6d176f77fbb9,
  title = {Serological tests for syphilis in the elderly.},
  author = {E A Johansson and A Lassus and A Apajalahti and K Aho},
  year = {1970},
  url = {https://pubmed.ncbi.nlm.nih.gov/4987097/},
  note = {Source identifier: 4987097}
}