@misc{indiciaeeb47f7dfa765,
  title = {Penumbra effect in therapy cones.},
  author = {A RAVENTOS and G S SCHWARTZ},
  year = {1951},
  doi = {10.1148/56.1.84},
  url = {https://pubmed.ncbi.nlm.nih.gov/14808584/},
  note = {Source identifier: 14808584}
}