@misc{indiciae7084bdaff068,
  title = {Occult-blood screening.},
  author = {J W Frank},
  year = {1986},
  doi = {10.1016/s0140-6736(86)91176-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/2871432/},
  note = {Source identifier: 2871432}
}