Molecular epidemiology and pathogenicity of H5N1 and H9N2 avian influenza viruses in clinically affected chickens on farms in Bangladesh oleh Ripatun Nahar Ripa, Joshua E. Sealy, Jayna Raghwani, Tridip Das, Himel Barua, Md. Masuduzzaman, A. K. M. Saifuddin, Md. Reajul Huq, Mohammad Inkeyas Uddin, Munir Iqbal, Ian Brown, Nicola S. Lewis, Dirk Pfeiffer, Guillaume Fournie, Paritosh Kumar Biswas