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WIJATA, Aleksandra, OSIAK, Joanna, MIKUT, Karolina, WINIAREK, Karolina, GUZOWSKI, Cezary, MURAWSKA, Joanna and KĘDZIORA-KORNATOWSKA, Kornelia. Causes of hoarseness - systematic review. Journal of Education, Health and Sport. Online. 24 July 2022. Vol. 12, no. 7, pp. 620-630. [Accessed 6 July 2024]. DOI 10.12775/JEHS.2022.12.07.062.