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Preventive Medicine  2018, Vol. 30 Issue (11): 1120-1123    DOI: 10.19485/j.cnki.issn2096-5087.2018.11.010
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Epidemiological characteristics of hepatitis A before and after expanded immunization program in Huzhou
LUO Xiao-fu*, JIN Ming-juan, ZHANG Chao
*Medicine college of Zhejiang University,Hangzhou,Zhejiang 310012,China