@misc{indiciae7966731fd71f,
  title = {Operative cholangiography.},
  author = {B W Ellis and A G Cox and R Wilkins and G de Lacey},
  year = {1979},
  doi = {10.1136/bmj.1.6179.1710-b},
  url = {https://pubmed.ncbi.nlm.nih.gov/466193/},
  note = {Source identifier: 466193}
}