@misc{indiciaef025302616c7,
  title = {A modified sternal retractor.},
  author = {N Ancalmo and J L Ochsner},
  year = {1976},
  doi = {10.1016/s0003-4975(10)64286-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/1267918/},
  note = {Source identifier: 1267918}
}