@misc{indiciae9983de321e59,
  title = {Endoscopic sphincterotomy before cholecystectomy?},
  author = {P B Cotton},
  year = {1989},
  doi = {10.1155/1989/63874},
  url = {https://pubmed.ncbi.nlm.nih.gov/2487391/},
  note = {Source identifier: 2487391}
}