@misc{indiciaea62ea2b0bf0f,
  title = {Simultaneous (synchronous) occurrence of Ewing sarcoma.},
  author = {G Beluffi and K Kozlowski and M Aricó},
  year = {1991},
  doi = {10.1007/bf02026690},
  url = {https://pubmed.ncbi.nlm.nih.gov/1749687/},
  note = {Source identifier: 1749687}
}