Challenges for accurate and prompt molecular diagnosis of clades of highly pathogenic avian influenza H5N1 viruses emerging in Vietnam. - Slomka MJ; To TL; Tong HH; Coward VJ; Hanna A; Shell W; Pavlidis T; Densham AL; Kargiolakis G; Arnold ME; Banks J; Brown IH (Avian pathology : journal of the W.V.P.A, 2012)