@misc{indiciae4e1fb0594424,
  title = {Colonoscopy: technique and training methods.},
  author = {H Shinya and M Cwern and R Karlstadt},
  year = {1982},
  doi = {10.1016/s0039-6109(16)42837-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/7123461/},
  note = {Source identifier: 7123461}
}