@misc{indiciae57fa26317fcc,
  title = {Pseudomembranous colitis.},
  author = {P H Ritchie and C R Pennington},
  year = {1980},
  doi = {10.1177/003693308002500406},
  url = {https://pubmed.ncbi.nlm.nih.gov/7209501/},
  note = {Source identifier: 7209501}
}