@misc{indiciaee2773fd180c3,
  title = {Recertification for thoracic surgeons.},
  author = {J L Ankeney},
  year = {1977},
  doi = {10.1016/s0003-4975(10)64560-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/879876/},
  note = {Source identifier: 879876}
}