@misc{indiciaef142eb6e533c,
  title = {Practical high-density shielding materials for medical linear accelerator rooms.},
  author = {R J Barish},
  year = {1990},
  doi = {10.1097/00004032-199001000-00004},
  url = {https://pubmed.ncbi.nlm.nih.gov/2294072/},
  note = {Source identifier: 2294072}
}