@misc{indiciaecdca9cb8aeee,
  title = {[Biliary tract aberrations can cause problems when discovered in cholecystectomy].},
  author = {W Graf and H Lange and E Sadola},
  year = {1987},
  url = {https://pubmed.ncbi.nlm.nih.gov/3821316/},
  note = {Source identifier: 3821316}
}