@misc{indiciae7b76bb7eb59d,
  title = {Sigmoidoscopy: rigid or flexible?},
  author = {M E Cohen and J S Barkin and R I Goldberg and R S Phillips},
  year = {1987},
  url = {https://pubmed.ncbi.nlm.nih.gov/3682134/},
  note = {Source identifier: 3682134}
}