@misc{indiciae0f13222c76ce,
  title = {Double bubble sign.},
  author = {H Schmidt and N Abolmaali and T J Vogl},
  year = {2002},
  doi = {10.1007/s00330-002-1341-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/12111079/},
  note = {Source identifier: 12111079}
}