@misc{indiciae852969ccac2f,
  title = {Risk indicators for inflammatory bowel disease.},
  author = {P G Persson and C E Leijonmarck and O Bernell and G Hellers and A Ahlbom},
  year = {1993},
  doi = {10.1093/ije/22.2.268},
  url = {https://pubmed.ncbi.nlm.nih.gov/8505183/},
  note = {Source identifier: 8505183}
}