@misc{indiciaea613c9663ed1,
  title = {Polyp retrieval impossible without colonoscope tip.},
  author = {L C Maas and E A Gelzayd and P J Doyle},
  year = {1984},
  doi = {10.1016/s0016-5107(84)72471-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/6510658/},
  note = {Source identifier: 6510658}
}