Comprehensive assessment of the Aral Sea region children’s health conditions Gulnara Tashenova, Raushan Issayeva, Aigerim Aliakparova, Riza Boranbayeva and Lyazzat Sarsenova E3S Web Conf., 159 (2020) 08005 Published online: 24 March 2020 DOI: 10.1051/e3sconf/202015908005