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Lyulin SV, Ivliev DS, Balaev PI, Borzunov DY, Ovsyankin AV, Miloserdov MA.Lyulin SV, et al. Among authors: borzunov dy.Zh Vopr Neirokhir Im N N Burdenko. 2021;85(4):49-57. doi: 10.17116/neiro20218504149.Zh Vopr Neirokhir Im N N Burdenko. 2021.PMID: 34463450Russian.