@misc{indiciae475a9c874d61,
  title = {Letter: Biliary beads.},
  author = {J J Berens},
  year = {1976},
  doi = {10.1056/nejm197607292950524},
  url = {https://pubmed.ncbi.nlm.nih.gov/934203/},
  note = {Source identifier: 934203}
}