@misc{indiciae71c7efc66e74,
  title = {Smoking and ulcerative colitis.},
  author = {D R Perera and C M Janeway and A Feld and J T Ylvisaker and L Belic and H Jick},
  year = {1984},
  doi = {10.1136/bmj.288.6429.1533},
  url = {https://pubmed.ncbi.nlm.nih.gov/6426627/},
  note = {Source identifier: 6426627}
}