@misc{indiciaea12a4dd0427c,
  title = {Internal sphincter and haemorrhoids: a pathological study.},
  author = {M T Haqqani and B D Hancock},
  year = {1978},
  doi = {10.1136/jcp.31.3.268},
  url = {https://pubmed.ncbi.nlm.nih.gov/641200/},
  note = {Source identifier: 641200}
}