Borowik, J. U., K. A. Kozak, K. J. Kuśmierczuk, W. Brodowski, P. Jawoszek, and P. Trojanowski. “The Advantages and Disadvantages of Using a CO2 Laser in Endoscopic Treatment of Laryngeal Cancer: a Literature Review”. Journal of Education, Health and Sport, vol. 9, no. 9, Sept. 2019, pp. 957-65, https://apcz.umk.pl/JEHS/article/view/7523.