Poberezhnyi, V. I., M. S. Pushkar, O. S. Shvydyuk, and D. D. Prokhorov. “Theoretical Foundations of Therapeutic and Preventive Measures from a Position of Functional System Approach. Clinical Experience. Demonstrative Cases”. Pain Medicine, vol. 1, no. 3, Sept. 2016, pp. 20-40, https://painmedicine.org.ua/index.php/pnmdcn/article/view/21.