Clinical features and risk factors for severe and critical pregnant women with 2009 pandemic H1N1 influenza infection in China
Peng-jun Zhang, Xiao-li Li, Bin Cao, Shi-gui Yang, Li-rong Liang, Li Gu, Zhen Xu, Ke Hu, Hong-yuan Zhang, Xi-xin Yan, Wen-bao Huang, Wei Chen, Jing-xiao Zhang, Lan-juan Li*, Chen Wang* and for the National Influenza A Pandemic (H1N1) 2009 Clinical Investigation Group of China