RACHWAŁ, Krystian, WIELGUS, Karol, BATOR, Piotr, RAZIK, Wiktor, ŁYKO, Grzegorz, ANTOS, Maria, FURGALSKA, Julia, PAWŁOWSKA, Maria and WAWRYSZUK, Angelika. Lactase Deficiency and Lactose Intolerance: Current Understanding and Future Directions. Journal of Education, Health and Sport. Online. 17 May 2024. Vol. 69, p. 49393. [Accessed 28 June 2024]. DOI 10.12775/JEHS.2024.69.49393.