@misc{indiciae1d24483b827e,
  title = {Contracted anal canal.},
  author = {D C DITMORE},
  year = {1951},
  doi = {10.1016/0002-9610(51)90183-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/14799689/},
  note = {Source identifier: 14799689}
}