@misc{indiciaed6cc5ad3194e,
  title = {Subspecialization and certification in radiology.},
  author = {A R Margulis},
  year = {1992},
  doi = {10.2214/ajr.159.5.1414786},
  url = {https://pubmed.ncbi.nlm.nih.gov/1414786/},
  note = {Source identifier: 1414786}
}