@misc{indiciae33182571e518,
  title = {Routine sigmoidoscopy costs and usefulness.},
  author = {W Weiss},
  year = {1971},
  doi = {10.1001/jama.1971.03180310122031},
  url = {https://pubmed.ncbi.nlm.nih.gov/5108295/},
  note = {Source identifier: 5108295}
}