@misc{indiciaea25c27796432,
  title = {The parasternal defect.},
  author = {E F CHIN and E R DUCHESNE},
  year = {1955},
  doi = {10.1136/thx.10.3.214},
  url = {https://pubmed.ncbi.nlm.nih.gov/13256440/},
  note = {Source identifier: 13256440}
}