%0 Journal Article %T DIAGNOSIS OF EARLY SIGNS OF CEREBROVASCULAR INSUFFICIENCY IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE %A Kvasnikova, Y.V. %A Men'shikova, I.G. %A Magalyas, E.V. %A Sklyar, I.V. %K chronic obstructive pulmonary disease, cerebral circulation insufficiency, ultrasound duplex scanning of the main arteries of the head. %J Bulletin physiology and pathology of respiration %D 2019 %N 1 %P 3 %I Far Eastern Scientific Center of Physiology and Pathology of Respiration