@misc{indiciae7e0e45beed70,
  title = {[Ulcerative colitis].},
  author = {Y Nao and H Obata and H Nagasako and C Yazawa},
  year = {1971},
  url = {https://pubmed.ncbi.nlm.nih.gov/4326408/},
  note = {Source identifier: 4326408}
}