Prevalence and genotypes distribution of virus hepatitis B and hepatitis delta virus in chronic liver diseases in Kazakhstan oleh Bibigul S. Ilyassova, Balzhan Abzhaparova, Dariga S. Smailova, Aidos Bolatov, Bolatbek Baymakhanov, Vyacheslav Beloussov, Maxim Solomadin, Kunsulu Shamsivaliyeva, Gulnara Alpysbayava, Gaukhar Issakova, Joanna Granica, Dina Mukushkina, Inkar Y. Sagatov, Shokan Kaniyev