Kwolczak, Justyna, Anna Roszkowska, Aleksandra Winiarz, Łukasz Świerszcz, Marek Winiarz, Joanna Nurzyńska-Flak, and Halina Piecewicz-Szczęsna. 2018. “Relapsed Wilms’ Tumor With Pulmonary Metastases – a Case Report”. Journal of Education, Health and Sport 8 (9):1629-34. https://apcz.umk.pl/JEHS/article/view/6130.