@misc{indiciae4a56b7c0f077,
  title = {What are the appropriate controls for a colonoscopic screening program?},
  author = {L Herrera and N J Petrelli},
  year = {1993},
  doi = {10.1007/bf02050309},
  url = {https://pubmed.ncbi.nlm.nih.gov/8416786/},
  note = {Source identifier: 8416786}
}