TY CONF TI VASCULAR ANATOMY OF THE VILLISIAN CIRCLE IN CEREBROVASCULAR PATHOLOGY KW cerebrovascular pathology; circle of willis; anatomical vari-ants of the vessels of the circle of willis JO Process Management and Scientific Developments AU Ustimenko, O.A. AU Kutafina, O.P. AU Volkova, A.N. PY 2024 PB AUS PUBLISHERS