GQ257517   Influenza A virus (A/mallard/Maryland/333/2003(H2N3)) segment 2 polymerase PB1 (PB1) and PB1-F2 protein (PB1-F2) genes, complete cds.   [Influenza A virus (A/mallard/Maryland/333/2003(H2N3)) | 652004.7]