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ZAJDEL, Dominika and JANKOWSKA, Paula. Abnormal uterine bleeding in adolescence - three cases of heavy menstrual bleeding (HMB). Journal of Education, Health and Sport. Online. 5 December 2022. Vol. 13, no. 1, pp. 246-250. [Accessed 27 July 2024]. DOI 10.12775/JEHS.2023.13.01.036.