SZAFRANIEC, Artur, KRĘŻEL, Olga, KRĘŻEL, Maciej, KALINOWSKA, Zuzanna, ALEKSANDROWICZ, Hanna and RYBIŃSKA, Marcelina. Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS): Post-Exertional Malaise and the Biology of Energy Failure. Journal of Education, Health and Sport. Online. 12 March 2026. Vol. 88, p. 69423. [Accessed 26 March 2026]. DOI 10.12775/JEHS.2026.88.69423.