?:authorAffiliation
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[\'Department of Pulmonary and Critical Care Medicine, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, People\'s Republic of China.\', \'Tobacco Medicine and Tobacco Cessation Center, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China.\', \'WHO Collaborating Center for Tobacco Cessation and Respiratory Diseases Prevention, Beijing, China.\', \'National Clinical Research Center for Respiratory Diseases, Beijing, China.\', \'Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, People\'s Republic of China.\', \'The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, People\'s Republic of China.\', \'Department of Pulmonary and Critical Care Medicine, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, People\'s Republic of China. xuxiaomaobjyy@163.com.\', \'Department of Pulmonary and Critical Care Medicine, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, People\'s Republic of China. lymyl@263.net.\']
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