LICZNER, Grzegorz, WICIŃSKI , Michał, CADELSKI, Karol and MALINOWSKI, Bartosz. Is the determination of bone turnover markers and vitamin D useful in the diagnosis of degeneration spine disease?. Journal of Education, Health and Sport. Online. 18 September 2021. Vol. 11, no. 9, pp. 259-271. [Accessed 11 December 2023]. DOI 10.12775/JEHS.2021.11.09.032.