Here are a few links –
- https://www.cancer.net/cancer-types/ewing-sarcoma-childhood-and-adolescence
- https://www.mayoclinic.org/diseases-conditions/ewing-sarcoma/symptoms-causes/syc-20351071#:~:text=Overview,abdomen%2C%20limbs%20or%20other%20locations.
- https://www.webmd.com/cancer/ewings-sarcoma
- https://orthoinfo.aaos.org/en/diseases–conditions/ewings-sarcoma/
- https://www.cancer.gov/types/bone/patient/ewing-treatment-pdq