TY JOUR TI Some features of toxicological properties of a specific immunobiostimulator “Transfer factor” in preclinical trials KW transfer factor KW acute toxicity KW mice KW rats KW guinea pigs KW allergenic properties KW leukocyte blast transformation JO Agrarian Bulletin of the AU Burkov, P.V. AU Scherbakov, P.. AU Derkho, M.A. AU Rebezov, M.B. AU Derho, A.O. PY 2024 IS 24 PB Ural State Agrarian University