@misc{indiciae2112a10ef08a,
  title = {A current approach to rectal bleeding.},
  author = {S L Levinson and D W Powell and W T Callahan and J D Jones and H B Kinard and A L Jackson and J L Lapis and D A Drossman},
  year = {1981},
  doi = {10.1097/00004836-198100031-00003},
  url = {https://pubmed.ncbi.nlm.nih.gov/6976985/},
  note = {Source identifier: 6976985}
}