@misc{indiciaeddaf2681546c,
  title = {The ring sign.},
  author = {Arumugam Rajesh},
  year = {2005},
  doi = {10.1148/radiol.2371031627},
  url = {https://pubmed.ncbi.nlm.nih.gov/16183937/},
  note = {Source identifier: 16183937}
}