Grin , N.V., and Yu.B. Burlaka. “ETIOLOGY AND PATHOGENESIS OF HYPOPHARYNX CANCER: GENETIC AND IMMUNOLOGICAL FACTORS OF DEVELOPMENT. Review”. Medical Science of Ukraine (MSU) 17, no. 2 (June 30, 2021): 102-113. Accessed October 27, 2021. https://msu-journal.com/index.php/journal/article/view/295.