@misc{indiciae3167538b070d,
  title = {Stool collection for occult blood testing.},
  author = {B Littenberg},
  year = {1988},
  doi = {10.7326/0003-4819-109-4-347\_2},
  url = {https://pubmed.ncbi.nlm.nih.gov/3395049/},
  note = {Source identifier: 3395049}
}