@misc{indiciaed6072fda49c7,
  title = {Difficulties encountered when using ERCP-based tissue sampling techniques to establish a diagnosis.},
  author = {Maurits J Wiersema},
  year = {2002},
  doi = {10.1067/mge.2002.127163},
  url = {https://pubmed.ncbi.nlm.nih.gov/12196800/},
  note = {Source identifier: 12196800}
}