@misc{indiciae1bbfc59b9c47,
  title = {[Letter: Technical facilitation in recto-sigmoidoscopy].},
  author = {H Koch and U Schiller and H Rauschecker},
  year = {1973},
  url = {https://pubmed.ncbi.nlm.nih.gov/4746184/},
  note = {Source identifier: 4746184}
}