@misc{indiciae61a12131afc2,
  title = {Rectal parietography in ulcerative colitis.},
  author = {P Virtama},
  year = {1966},
  doi = {10.1177/028418516600400311},
  url = {https://pubmed.ncbi.nlm.nih.gov/5941962/},
  note = {Source identifier: 5941962}
}