RT - SR - Electronic T1 - HBsAg level as a disease activity marker in patients with chronic hepatitis Delta. SP - 2022-08-31 A1 - Belopolskaya M.A., A1 - Avrutin V., A1 - Firsov S., A1 - Yakovlev A., A1 - Kalinina O., YR - 2016-06-26 UL - https://pasteur.elpub.ru/publication/1809 AB -