TEMPORAL VARIATIONS IN MORTALITY FROM THE MAIN CAUSES OF DEATH IN 2014-2018 IN KHANTY-MANSIYSK AUTONOMOUS DISTRICT-UGRA (WESTERN SIBERIA) Article Ragozin O.N., Shalamova E.Y., Kicha D.I., Gudkov A.B., Popova O.N., Chursina I.I. Human Ecology. Vol. 2020. 2020. P. 57-64