MODERN ASPECTS OF ORGAN-PRESERVING SURGERY FOR LARYNGEAL CANCER [SOVREMENNYE ASPEKTY ORGANOSOKHRANYAYUSHCHEI KHIRURGII RAKA GORTANI] Article Kozhanov A.L., Kozhanov L.G., Kravtsov S.A., Sdvizhkov A.M. Vestnik Oto-Rino-Laringologii. Vol. 87. 2022. P. 44-50