@misc{indiciaedd17c2c0735a,
  title = {Anorectal Crohn's disease.},
  author = {S Karayannopoulos and B I Chazan and D M Hancock and E P Kempsey},
  year = {1972},
  url = {https://pubmed.ncbi.nlm.nih.gov/5073773/},
  note = {Source identifier: 5073773}
}