For citations:

Gretskikh K.V., Tokarev A.S. High-grade gliomas: a literature review. Part 1. Epidemiology, classification and approaches to combination treatment. Russian journal of neurosurgery. 2021;23(1):124‑134. (In Russ.) https://doi.org/10.17650/1683-3295-2021-23-1-124-134