Wolska, Joanna, Dariusz Wolski, Andrzej Stanisławek, Dorota Weber, and Anna Irzmańska-Hudziak. 2019. “Metastasis of Breast Cancer to the Bone”. Journal of Education, Health and Sport 9 (8):905-11. https://apcz.umk.pl/JEHS/article/view/7449.