@misc{indiciae58bc8977ff08,
  title = {Faecal occult blood testing.},
  author = {P G Hill and J A Fyffe},
  year = {1990},
  doi = {10.1177/000456329002700402},
  url = {https://pubmed.ncbi.nlm.nih.gov/2403230/},
  note = {Source identifier: 2403230}
}