@misc{indiciaef84aaf051ce5,
  title = {Sigmoidoscopy.},
  author = {E Weissman},
  year = {1993},
  doi = {10.1093/jnci/85.23.1965},
  url = {https://pubmed.ncbi.nlm.nih.gov/8230292/},
  note = {Source identifier: 8230292}
}