TY - GEN AU - SMIDA,J AU - KOVAROVA,V TI - [Comparison of two method of purification of fowl tumor B77 virus by precipitation with ammonium sulfate and by fractional centrifugation] PY - 2003///0501 KW - Ammonium Sulfate KW - Animals KW - Centrifugation KW - Immune System Phenomena KW - Neoplasms, Experimental KW - Oncogenic Viruses KW - Viruses N1 - Publication Type: Journal Article ER -