@misc{indiciaea9f14690e498,
  title = {Endoscopy retrograde cholangiography.},
  author = {M Guelrud and J Plaz-Abreu},
  year = {1983},
  url = {https://pubmed.ncbi.nlm.nih.gov/6353111/},
  note = {Source identifier: 6353111}
}