For citations:
Vasilyev N.V., Poletaeva S.V., Tabakaev S.A., Tyukalov Yu.I., Perelmuter V.M. EWING SARCOMA: FEATURES OF LYMPHOGENOUS METASTASIS AND PROGNOSTIC FACTORS. Siberian journal of oncology. 2019;18(5):29-37. (In Russ.) https://doi.org/10.21294/1814-4861-2019-18-5-29-37