@misc{indiciae4516dc414135,
  title = {Duodenoscopy.},
  author = {J A Gregg and M Garabedian},
  year = {1971},
  doi = {10.1016/s0039-6109(16)39440-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/5579025/},
  note = {Source identifier: 5579025}
}