@misc{indiciaed4b76adb6e55,
  title = {[Peroperative choldochoscopy. Experience from 50 operations].},
  author = {H G Erichsen and K Revheim},
  year = {1979},
  url = {https://pubmed.ncbi.nlm.nih.gov/425090/},
  note = {Source identifier: 425090}
}