?:authorAffiliation
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[\'School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, 200032, China.\', \'National Immunization Programme, Chinese Center for Disease Control and Prevention, Beijing, China.\', \'School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, 200032, China. yhj@fudan.edu.cn.\']
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