@misc{indiciae02a13ed9dab3,
  title = {[Experiences with papillotomy].},
  author = {H von Ackeren and H Henning and N Soehendra},
  year = {1973},
  url = {https://pubmed.ncbi.nlm.nih.gov/4692559/},
  note = {Source identifier: 4692559}
}