GQ257485   Influenza A virus (A/mallard/Maryland/439/2002(H11N9)) segment 2 polymerase PB1 (PB1) and PB1-F2 protein (PB1-F2) genes, complete cds.   [Influenza A virus (A/mallard/Maryland/439/2002(H11N9)) | 652006.10]