A. A. Belkin, I. B. Zabolotskikh, P. Y. Bochkarev, K. D. Zybin, and A. L. Levit, “The first experience of application of “full outline of unresponsiveness” (FOUR SCALE) in patients with acute cerebral insufficiency. Two-center research ‘FOUR-Rus’. Two-center trial”, Annals of Critical Care, no. 3, pp. 27–34, Sep. 2020, doi: 10.21320/1818-474X-2020-3-27-34.