Xu Zhi-Yi

Dysentery in Zhengding County , Hebei Province , China

J. Clemens, L. Seidlein, Mohammad Ali, 2019 .

Efficacy of a locally produced, Chinese Vi polysaccharide typhoid fever vaccine during six years of follow-up.

C. Acosta, J. Clemens, W. Ning, 2005, Vaccine.

Cost-effectiveness of routine immunization to control Japanese encephalitis in Shanghai, China.

P. Kilgore, J. Clemens, Zhi-yi Xu, 2003, Bulletin of the World Health Organization.