@misc{indiciae43e2edb10220,
  title = {Endoscopic sphincterotomy.},
  author = {J E Geenen},
  year = {1978},
  doi = {10.1016/s0016-5107(78)73553-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/730012/},
  note = {Source identifier: 730012}
}