TY JOUR TI Stereotactic Body Radiation Therapy (SBRT) in Patients with Head and Neck Cancer Treatment. Current State of the Problem KW head – neck cancer KW stereotactic body radion therapy KW SBRT JO Medical Radiology and radiation safety AU Gevorkov, A.R. AU Boyko, A.V. AU Kaprin, A.D. PY 2022 IS 67 PB Federal Medical Biological Agency of Russia