?:authorAffiliation
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[\'School of Public Health, Peking University, Beijing 100191, China.\', \'Institute of Medical Information, Chinese Academy of Medical Sciences, Beijing 100020, China.\', \'Beijing Preventive Medicine Association, Beijing 100013, China.\', \'National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China.\', \'Meinian Institute of Health, Beijing 100191, China.\']
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