@misc{indiciae90eeb3256374,
  title = {Postanal sinus.},
  author = {K G Harding},
  year = {1981},
  doi = {10.1136/bmj.282.6258.150-b},
  url = {https://pubmed.ncbi.nlm.nih.gov/6779920/},
  note = {Source identifier: 6779920}
}