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Safety and immunogenicity of a new 13-valent pneumococcal conjugate vaccine versus a licensed 7-valent pneumococcal conjugate vaccine: a study protocol of a randomised non-inferiority trial in China
Jing Jing Chen, Lin Yuan, Zhen Huang, Nian Min Shi, Yu Liang Zhao, Sheng Li Xia, Guo Hua Li, Rong Cheng Li, Yan Ping Li, Shu Yuan Yang, Jie Lai Xia

BMJ Open Oct 2016, 6 (10) e012488; DOI: 10.1136/bmjopen-2016-012488

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