Shamil Gantsev, MDOncologyBashkir State Medical UniversityRepublic of Bashkortostan, RussiaKamil Gantsev, MDOncologyBashkir State Medical UniversityRepublic of Bashkortostan, RussiaShamil Kzyrgalin, MDOncologyBashkir State Medical UniversityRepublic of Bashkortostan, RussiaDauranbek ArybzhanovDepartment of Chemotherapy and Endovascular OncologySouth Kazakhstan Medical Academy Shymkent, Kazakhstan