@misc{indiciaebf0fb3a00860,
  title = {Ulcerative colitis.},
  author = {F J Zijlstra},
  year = {1982},
  doi = {10.1016/s0140-6736(82)90772-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/6119568/},
  note = {Source identifier: 6119568}
}