@misc{indiciaec19003ebde3b,
  title = {[Pyoderma in the course of ulcerative colitis].},
  author = {J Polcák and L Hrncírová and M Skálová},
  year = {1968},
  url = {https://pubmed.ncbi.nlm.nih.gov/4386087/},
  note = {Source identifier: 4386087}
}