Functional deviations of the cardiovascular system in children of the Aral Sea Gulnara Tashenova, Riza Boranbayeva, Aida Akhenbekova, Gulzhan Kassenova and Lyaylim Nurlybay E3S Web Conf., 159 (2020) 01004 Published online: 24 March 2020 DOI: 10.1051/e3sconf/202015901004