GRZESZCZAK, Konrad, STROŃSKA, Aleksandra and ROGULSKA, Karolina. The relevance of probiotics in therapy. Journal of Education, Health and Sport. Online. 14 August 2021. Vol. 11, no. 8, pp. 80-85. [Accessed 27 July 2024]. DOI 10.12775/JEHS.2021.11.08.009.