@misc{indiciaee97aeb03ecac,
  title = {Pectus excavatum obliterating left heart border--case report.},
  author = {J E Shevland and M M Abu-Yousef},
  year = {1980},
  doi = {10.1111/j.1440-1673.1980.tb02168.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/7447821/},
  note = {Source identifier: 7447821}
}