2Gao R,Cao B,Hu Y, et al. Human infections with a novel avian- ori- gin influenza A (H7N9) vires[J]. N Engl J IVied, 2013.
3Chen Y, Liang WF, Yang SG, et al. Human infections with the emerging avian influenza A H7N9 virus from wet market poultry: clini- cal analysis and characterisation of viral genome[J]. The Lancet, Early Online Publication, 2013.
4L i Q, Zhou L, Zhou M, etal. Preliminary report: epidemioogy of the avian influenza A(H7N9) outbreak in China[J]. N Engl J Med, 2013 [Epub ahead of print].