4Taubenberger JK, Reid AH, Lourens RM, et al. Characterization of the 1918 influenza virus polymerase genes[J]. Nature, 2005, 437(6): 889- 893.
5Elster C, Larsen K, GagnoJ, et al. Influenza virus M 1 Protein binds to RNA through its nuclear localization signal[J]. J chen viml, 1997, (78): 1589-1596.
6Baker AT, Varghese JN, Laver WG, et al. Three dimensional structure of neuraminidase of subtype N9 from an avian influenza virus[J]. Roteins, 1987, 2(2): 111-117.
