Protein encoding sequences alignment of the ten 2009 pandemic A (H1N1) influenza viruses. XuLili BaoLinlin ZhouJianfang WangDayan DengWei LvQi MaYila LiFengdi SunHuihui ZhanLingjun ZhuHua MaChunmei ShuYuelong QinChuan 2013 <p>The numbering of the residues are from the first amino acid in the methionine start site of each gene of influenza viruses.</p>