@misc{indiciaeb42fdf1e2cc3,
  title = {[Endoscopic sonography--diagnostic progress in the upper digestive tract?].},
  author = {H Dancygier},
  year = {1986},
  url = {https://pubmed.ncbi.nlm.nih.gov/3520198/},
  note = {Source identifier: 3520198}
}