Bogdanovska, Nadezhda, Iryna Kalonova, and Natalia Pozmogova. “Pathophysiological Concepts of the Syndrome of Chronic Fatigue and Clinical Features As a Basis for Building Physical Rehabilitation Programs”. Journal of Education, Health and Sport 6, no. 11 (November 30, 2016): 955–965. Accessed June 1, 2023. https://apcz.umk.pl/JEHS/article/view/6223.