@misc{indiciae9958c52776f9,
  title = {Gallbladder non-filling at ERCP.},
  author = {D Martin and D E Tweedle},
  year = {1989},
  doi = {10.1002/bjs.1800760135},
  url = {https://pubmed.ncbi.nlm.nih.gov/2917248/},
  note = {Source identifier: 2917248}
}