@misc{indiciae48450802ba1a,
  title = {Smoking and ulcerative colitis.},
  author = {R F Logan and M Edmond and K W Somerville and M J Langman},
  year = {1984},
  doi = {10.1136/bmj.288.6419.751},
  url = {https://pubmed.ncbi.nlm.nih.gov/6423062/},
  note = {Source identifier: 6423062}
}