@misc{indiciaed70c2e3e2b0d,
  title = {[Practical experiences with douglasscopy].},
  author = {E WALCH and H GRUENAGEL},
  year = {1954},
  url = {https://pubmed.ncbi.nlm.nih.gov/13188340/},
  note = {Source identifier: 13188340}
}