1. Butler D: Mapping the H7N9 avian flu outbreaks. Nature. 2013, doi:10.1038/nature.2013.12863
2. World Health Organization: Human infection with avian influenza A(H7N9) virus in China -Update on May 17th. 2013, Available online: http://www.who.int/csr/don/2013_05_17/en/index.html
3. Horby P: H7N9 is a virus worth worrying about. Nature. 2013, 496: 399-10.1038/496399a.
4. Li Q, Zhou L, Zhou M, Chen Z, Li F, Wu H, Xiang N, Chen E, Tang F, Wang D, Meng L, Hong Z, Tu W, Cao Y, Li L, Ding F, Liu B, Wang M, Xie R, Gao R, Li X, Bai T, Zou S, He J, Hu J, Xu Y, Chai C, Wang S, Gao Y, Jin L, et al: Preliminary report: epidemiology of the avian influenza A (H7N9) outbreak in China. N Eng J Med. in press
5. Chen Y, Liang W, Yang S, Wu N, Gao H, Sheng J, Yao H, Wo J, Fang Q, Cui D, Li Y, Yao X, Zhang Y, Wu H, Zheng S, Diao H, Xia S, Zhang Y, Chan K-H, Tsoi HW, Teng JL, Song W, Wang P, Lau S-Y, Zheng M, Chan JF, To KK, Chen H, Li L, Yuen KY: Human infections with the emerging avian influenza A H7N9 virus from wet market poultry: clinical analysis and characterisation of viral genome. Lancet. 2013, 381: 1916-1925. 10.1016/S0140-6736(13)60903-4.