Zhou, H., Shao, Z., Li, Q., Xu, L., Wu, J., Kan, B., & Xu, J. (2011). Neisseria meningitidis Strain of Unknown Serogroup, China. Centers for Disease Control and Prevention.

Zhou, Haijian, Zhujun Shao, Qian Li, Li Xu, Jiang Wu, Biao Kan, and Jianguo Xu. Neisseria Meningitidis Strain of Unknown Serogroup, China. Centers for Disease Control and Prevention, 2011.

Zhou, Haijian, et al. Neisseria Meningitidis Strain of Unknown Serogroup, China. Centers for Disease Control and Prevention, 2011.