@misc{indiciaed5da164b9d2e,
  title = {[Ulcerative colitis. Maintenance therapy].},
  author = {W Kruis and S Schreiber},
  year = {2004},
  doi = {10.1055/s-2004-813494},
  url = {https://pubmed.ncbi.nlm.nih.gov/15455275/},
  note = {Source identifier: 15455275}
}