@misc{indiciae78ac1e6a8b8d,
  title = {Difficult sigmoid colon intubation: guide wire exchange technique.},
  author = {R M Ness and K Gottlieb and D K Rex and G A Lehman},
  year = {1996},
  doi = {10.1016/s0016-5107(96)70245-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/8836731/},
  note = {Source identifier: 8836731}
}