?:authorAffiliation
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[\'Department of Geriatrics / Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China.\', \'Department of Geriatrics / Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China. Electronic address: qiongch@163.com.\']
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