@misc{indiciae83d576e7f98d,
  title = {Internal sphincterotomy.},
  author = {A P Clery and M Feely},
  year = {1970},
  doi = {10.1136/bmj.4.5728.178-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/5475835/},
  note = {Source identifier: 5475835}
}