@misc{indiciaea7dd198797df,
  title = {Collagenous colitis.},
  author = {V Grouls and J Vogel and M Sorger},
  year = {1982},
  doi = {10.1055/s-2007-1021570},
  url = {https://pubmed.ncbi.nlm.nih.gov/7056243/},
  note = {Source identifier: 7056243}
}