@misc{indiciae617c5f656709,
  title = {"Doughnut" sign in brain scanning.},
  author = {Y A Tarcan and W Fajman and J Marc and D Berg},
  year = {1976},
  doi = {10.2214/ajr.126.4.842},
  url = {https://pubmed.ncbi.nlm.nih.gov/179357/},
  note = {Source identifier: 179357}
}