@misc{indiciaea0235e39d5c6,
  title = {Letter: Postoperative pseudomembranous colitis.},
  author = {A R Crapp and J Powis and C Clark and M R Keighley and J Alexander-Williams},
  year = {1975},
  doi = {10.1136/bmj.3.5977.227},
  url = {https://pubmed.ncbi.nlm.nih.gov/1148741/},
  note = {Source identifier: 1148741}
}