@misc{indiciae2c15cc50b662,
  title = {Crohn's disease.},
  author = {H D Janowitz and D B Sachar and A J Greenstein},
  year = {1977},
  doi = {10.1016/s0140-6736(77)91856-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/64833/},
  note = {Source identifier: 64833}
}