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Preventive Medicine  2017, Vol. 29 Issue (6): 555-561    DOI: 10.19485/j.cnki.issn1007-0931.2017.06.004
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A meta-analysis of effectiveness of influenza vaccine in the elderly in China
YANG Gui-yue, PAN Xing-qiang, ZHAO Fen, YANG Wen-jun, WU Yuan, CHEN Xiu-li
Baiyun Street Community Health Center of Haishu District,Ningbo,Zhejiang,315000,China