@misc{indiciaef9afc6888083,
  title = {Anatomic variants and artifacts in ERCP interpretation.},
  author = {D J Gulliver and P B Cotton and J Baillie},
  year = {1991},
  doi = {10.2214/ajr.156.5.2017963},
  url = {https://pubmed.ncbi.nlm.nih.gov/2017963/},
  note = {Source identifier: 2017963}
}