FJ536768   Influenza A virus (A/swine/Beijing/21/2008(H1N1)) strain A/swine/Beijing/21/2008 segment 7 matrix protein 2 (M2) and matrix protein 1 (M1) genes, complete cds.   [Influenza A virus (A/swine/Beijing/21/2008(H1N1)) | 580585.9]