Maksimczyk–Wrona, Grażyna, Maciej Ornat, Wojciech Tokarski, and Eleonora Anna Mess. 2019. “Arthroplasty of the Knee Six Months After Surgery, the Return to Fitness”. Journal of Education, Health and Sport 9 (10):280-90. https://apcz.umk.pl/JEHS/article/view/7614.