@misc{indiciae170e275ab0e4,
  title = {Fiberoptic colonoscopy. A new look at old problems.},
  author = {P H Sugarbaker and G C Vineyard},
  year = {1973},
  doi = {10.1016/0002-9610(73)90077-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/4693036/},
  note = {Source identifier: 4693036}
}