Elena A. Lugovaya. "MICROELEMENT MISBALANCE IN THE ELDERLY PEOPLE RESIDING IN THE NORTH REGIONS." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th International Multidisciplinary Scientific GeoConference SGEM2019, Ecology, Economics, Education and Legislation (2019): 531-538. https://doi.org/10.5593/sgem2019/5.2/s20.066