FJ517304   Influenza A virus (A/mallard/Minnesota/371/1998(H4N2)) segment 2 polymerase PB1 (PB1) and PB1-F2 protein (PB1-F2) genes, complete cds.   [Influenza A virus (A/mallard/Minnesota/371/1998(H4N2)) | 579170.5]