@misc{indiciae5bd469a888ae,
  title = {Letter: Ulcerative colitis in the elderly.},
  author = {J O Gebbers and H F Otto},
  year = {1975},
  doi = {10.1016/s0140-6736(75)90819-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/52093/},
  note = {Source identifier: 52093}
}