@misc{indiciaec9be431999bd,
  title = {Screening flexible sigmoidoscopy: effectiveness is not enough.},
  author = {R H Fletcher and F A Farraye},
  year = {1999},
  doi = {10.1053/gast.1999.0029900486},
  url = {https://pubmed.ncbi.nlm.nih.gov/10419930/},
  note = {Source identifier: 10419930}
}