Sawicka, K., M. Prasał, E. Krzyżanowska, R. J. Łuczyk, M. Trąbka, and J. Daniluk. “Preparation of Patients With Low Pressure Lifting Patients”. Journal of Education, Health and Sport, vol. 7, no. 8, Aug. 2017, pp. 135-49, https://apcz.umk.pl/JEHS/article/view/4705.