@misc{indiciaec76ae8a7bb05,
  title = {[The Gastroenterologic Oncology Study Group].},
  author = {C C Singe and K Ewe and G Schlierf and W F Jungi},
  year = {1988},
  url = {https://pubmed.ncbi.nlm.nih.gov/2454559/},
  note = {Source identifier: 2454559}
}