- Risk factors associated with severe manifestations of 2009 pandemic influenza A (H1N1) infection in China: a case-control studyYan Yan Ren
Shandong Center for Disease Prevention and Control, Jinan, Shandong Province, China
Virol J 10:149. 2013..No studies on the risk factors of 2009 pandemic influenza A (H1N1) in China have been reported. We aimed to investigate the risk factors for severe manifestations of 2009 pandemic H1N1 influenza in China..