Pytka MB, Gołda S, Kanadys K. Consumption of probiotics among children aged 1 - 6 and their health. FeR [Internet]. 2020 Oct. 29 [cited 2025 Jul. 19];43(3):138-51. Available from: https://fidesetratio.com.pl/ojs/index.php/FetR/article/view/313