@misc{indiciae027336fb1a96,
  title = {[Temporal aspects of endoscopic methods].},
  author = {J Phillip and M Classen and R J Sahl and P Ruus},
  year = {1988},
  url = {https://pubmed.ncbi.nlm.nih.gov/3206936/},
  note = {Source identifier: 3206936}
}