@misc{indiciae5bc70edc3632,
  title = {Primary spinal epidural extraosseous Ewing's sarcoma.},
  author = {G J Kaspers and W Kamphorst and M van de Graaff and H A van Alphen and A J Veerman},
  year = {1991},
  doi = {10.1002/1097-0142(19910801)68:3<648::aid-cncr2820680335>3.0.co;2-q},
  url = {https://pubmed.ncbi.nlm.nih.gov/2065287/},
  note = {Source identifier: 2065287}
}