@misc{indiciae80b70c3232d7,
  title = {A simple esophageal retractor.},
  author = {F W Robinson},
  year = {1969},
  doi = {10.1016/0002-9610(69)90160-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/5811578/},
  note = {Source identifier: 5811578}
}