“Clinical effectiveness of phototherapy for symptomatic gingivitis and generalized 1-st degree paradontosis during the led radiation activator ‘LED-Active 05’”, Фотобіол Фотомед, vol. 10, no. 1, 2, pp. 26–30, Oct. 2015, Accessed: Oct. 26, 2026. Available: https://periodicals.karazin.ua/photomedicine/article/view/4204