TY JOUR TI FORMATION OF SECONDARY IMMUNODEFICIENCY IN GOBIES IN DIFFERENT REGIONS OF NORTHERN PART OF CASPIAN SEA KW the Northern Caspian Sea KW gobies KW interstitial fluid KW inhibition index KW secondary immunodeficiency JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Borisova, T.. AU Geraskin, P.. PY 2020 IS PB Astrakhan State Technical University