@misc{indiciae447c6ada98af,
  title = {Biliary tract surgery in the elderly.},
  author = {R S Sandler and W F Maule and M E Baltus and K L Holland and M S Kendall},
  doi = {10.1007/bf02596141},
  url = {https://pubmed.ncbi.nlm.nih.gov/3108473/},
  note = {Source identifier: 3108473}
}