@misc{indiciaeba876630cc9a,
  title = {Evaluating ERCP is important but difficult.},
  author = {P B Cotton},
  year = {2002},
  doi = {10.1136/gut.51.2.287},
  url = {https://pubmed.ncbi.nlm.nih.gov/12117897/},
  note = {Source identifier: 12117897}
}