WYSZYŃSKA, J.; DEREŃ, K.; HAUSNER, I.; MAZUR, A. Selected factors influencing the level of physical activity in the elderly. European Journal of Clinical and Experimental Medicine, [S. l.], v. 16, n. 3, p. 184–189, 2018. DOI: 10.15584/ejcem.2018.3.2. Disponível em: https://journals.ur.edu.pl/ejcem/article/view/11717. Acesso em: 2 feb. 2026.