@misc{indiciae190a3ced5af8,
  title = {Endoscopic biliary dilatation.},
  author = {N A Collier},
  year = {1986},
  doi = {10.5694/j.1326-5377.1986.tb113640.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/3941622/},
  note = {Source identifier: 3941622}
}