HUMAŃSKA, Marzena Agnes, ULENBERG, Agata, ULENBERG, Gregory, PLUTA, Agnes, PÓŁROLNIK, Christine and FELSMANN, Miroslaw. Historical background of surgical treatment of lung cancer in the elderly. Journal of Education, Health and Sport. Online. 16 March 2018. Vol. 8, no. 3, pp. 321-328. [Accessed 27 July 2024].