@misc{indiciaeb6266e0de837,
  title = {Ewing's sarcoma--a local or systemic problem?},
  author = {R B Marcus},
  year = {1991},
  doi = {10.1016/0360-3016(91)90039-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/2004970/},
  note = {Source identifier: 2004970}
}