@misc{indiciaef3a6a875474e,
  title = {False-negative morphine-augmented biliary image.},
  author = {M R Conrad and A L Goldfarb and A A Weaver},
  year = {1989},
  doi = {10.1097/00003072-198908000-00015},
  url = {https://pubmed.ncbi.nlm.nih.gov/2805545/},
  note = {Source identifier: 2805545}
}