@misc{indiciae871a94e85988,
  title = {Pseudomembranous colitis: how useful is endoscopy?},
  author = {J M Bergstein and A Kramer and D H Wittman and C Aprahamian and E J Quebbeman},
  year = {1990},
  doi = {10.1007/bf00316796},
  url = {https://pubmed.ncbi.nlm.nih.gov/2291163/},
  note = {Source identifier: 2291163}
}