Szydełko, J., M. Litwińczuk, and M. Szydełko. “Matrix Metalloproteinases and Their Tissue Inhibitors As Novel Markers in Invasive Pituitary Adenomas – a Review”. Journal of Education, Health and Sport, vol. 9, no. 9, Sept. 2019, pp. 828-51, https://apcz.umk.pl/JEHS/article/view/7503.