@misc{indiciae93f6c6c26eed,
  title = {Fibreoptic colonoscopic polypectomy.},
  author = {J C Penfold},
  year = {1974},
  doi = {10.5694/j.1326-5377.1974.tb50789.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4821159/},
  note = {Source identifier: 4821159}
}