KALINOWSKA, Weronika, KULASZA, Paulina Sara, GURAL, Mateusz and JEZIERSKA, Karolina. Hyperferritinemia and hypoferritinemia in the context of chronic fatigue syndrome pathogenesis: a literature review and clinical implications. Journal of Education, Health and Sport. Online. 9 November 2025. Vol. 85, p. 66478. [Accessed 27 December 2025]. DOI 10.12775/JEHS.2025.85.66478.