?:authorAffiliation
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[\'Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, Guangdong, China.\', \'School of Public Health, Southern Medical University, Guangzhou, China.\', \'Department of Epidemiology and Biostatistics, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China.\', \'State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.\', \'Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, Guangdong, China 1396320174@qq.com 759888406@qq.com.\']
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