@misc{indiciae7225eb3162c6,
  title = {The four doctors.},
  author = {S C Schatzki},
  year = {1997},
  doi = {10.2214/ajr.169.2.9273818},
  url = {https://pubmed.ncbi.nlm.nih.gov/9273818/},
  note = {Source identifier: 9273818}
}