Ziółkowska, Anna, Paweł Wojtczak, Wiktoria Śniegowska, Dominika Ciecierska, Edyta Piechocka, Bartłomiej Wrzesiński, Maciej Dzierżanowski, and Urszula Kazimierczak. “Does Physical Activity Affect the Pain and Mobility of the Lumbosacral Spine in Pregnant Women? - Case-Control Study”. Journal of Education, Health and Sport 8, no. 7 (July 31, 2018): 418–423. Accessed January 29, 2023. https://apcz.umk.pl/JEHS/article/view/5750.