@misc{indiciae8c287de7602c,
  title = {Ulcerative colitis.},
  author = {G Watkinson},
  year = {1970},
  doi = {10.1177/003693307001500505},
  url = {https://pubmed.ncbi.nlm.nih.gov/4914017/},
  note = {Source identifier: 4914017}
}