Farooqui, Amber, Yanchang Lei, Pusheng Wang, Jianyun Huang, Jie Lin, Guishuang Li, Alberto J Leon, Zhen Zhao, and David J Kelvin. “Genetic and Clinical Assessment of 2009 Pandemic Influenza in Southern China”. The Journal of Infection in Developing Countries 5, no. 10 (August 30, 2011): 700–710. Accessed April 29, 2024. https://jidc.org/index.php/journal/article/view/21997938.