@misc{indiciae9618282d4321,
  title = {Mild ulcerative colitis.},
  author = {A K Maitra},
  year = {1970},
  doi = {10.1136/bmj.1.5693.431},
  url = {https://pubmed.ncbi.nlm.nih.gov/4392199/},
  note = {Source identifier: 4392199}
}