@misc{indiciae43de1461ec45,
  title = {[Ulcerative colitis. Chronic active course].},
  author = {A U Dignass and K Herrlinger and J Schölmerich},
  year = {2004},
  doi = {10.1055/s-2004-813495},
  url = {https://pubmed.ncbi.nlm.nih.gov/15455274/},
  note = {Source identifier: 15455274}
}