@misc{indiciaea73055a1d38f,
  title = {Letter: Radiological units.},
  author = {R Loevinger},
  year = {1974},
  doi = {10.1088/0031-9155/19/5/115},
  url = {https://pubmed.ncbi.nlm.nih.gov/4445240/},
  note = {Source identifier: 4445240}
}