@misc{indiciae4c90e676f7d9,
  title = {Pericarditis in association with ulcerative colitis.},
  author = {E N Levin and D S Hirschfeld and R A Hersch},
  year = {1979},
  url = {https://pubmed.ncbi.nlm.nih.gov/442630/},
  note = {Source identifier: 442630}
}