"EV-2"^^ . "ncbi_taxonomy"^^ . "Avian retrovirus RAV-0"^^ . "Rous associated virus type 0"^^ . . "NCBITaxon:11911"^^ . "NCBITaxon:11953"^^ . "GC_ID:1"^^ . "Avian endogenous rous-associated virus-0"^^ . "Avian endogenous virus RAV-0"^^ . "Rous-associated virus type 0"^^ . .