@misc{indiciae216bfc22fb9f,
  title = {[Why do we need colon endosonography?].},
  author = {U Hildebrandt and K Ecker and G Feifel},
  year = {1993},
  url = {https://pubmed.ncbi.nlm.nih.gov/8374270/},
  note = {Source identifier: 8374270}
}