@misc{indiciae453bc1523e69,
  title = {The sphincter that is a sphinx.},
  author = {F J Ingelfinger},
  year = {1971},
  doi = {10.1056/nejm197105132841910},
  url = {https://pubmed.ncbi.nlm.nih.gov/5553199/},
  note = {Source identifier: 5553199}
}