Influenza Virus Database (IVDB): an integrated information resource and analysis platform for influenza virus research. - Suhua Chang; Jiajie Zhang; Xiaoyun Liao; Xinxing Zhu; Dahai Wang; Jiang Zhu; Tao Feng; Baoli Zhu; George F. Gao; Jian Wang 065; Huanming Yang; Jun Yu 004; et al. (Nucleic Acids Res., 2007)