@misc{indiciaeb692c4eab9bd,
  title = {[Experiences with duodenoscopy].},
  author = {J Kotrlík and P Friĕ and R Ronský and F Pitha},
  year = {1974},
  url = {https://pubmed.ncbi.nlm.nih.gov/4218810/},
  note = {Source identifier: 4218810}
}