@misc{indiciaeb815030abff5,
  title = {Ulcerative colitis. Mysterious, multiplex and menacing.},
  author = {J B Kirsner},
  year = {1971},
  doi = {10.1016/0021-9681(71)90001-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/5556488/},
  note = {Source identifier: 5556488}
}