Liczner, G., Wiciński , M. ., Cadelski, K. and Malinowski, B. . (2021) “Is the determination of bone turnover markers and vitamin D useful in the diagnosis of degeneration spine disease?”, Journal of Education, Health and Sport, 11(9), pp. 259–271. doi: 10.12775/JEHS.2021.11.09.032.