ZIELIŃSKI, Grzegorz, FILIPIAK, Zuzanna, SUWAŁA, Marta, KOZŁOWSKA, Aleksandra and GINSZT, Michał. The impact of nutritional status on the incidence of back pain in school-aged children - a study using the Cole’s index. Journal of Education, Health and Sport. Online. 15 July 2018. Vol. 8, no. 8, pp. 339-346. [Accessed 27 July 2024].