Jamka, Małgorzata, Aleksandra Makarewicz, Maria Wasiewicz-Gajdzis, Jan Brylak, Hanna Wielińska-Wiśniewska, Zuzanna Pawlak, Jan Krzysztof Nowak, Karl-Heinz Herzig, Edyta Mądry, and Jarosław Walkowiak. 2021. “App-Assured Essential Physical Activity for the Prevention of Cognitive Decline: Changing Paradigms in Public Health – a Study Protocol for a Randomised Controlled Trial: A Study Protocol of the PA PROTECT Study”. Journal of Medical Science 90 (4):e530. https://doi.org/10.20883/medical.e530.