?:authorAffiliation
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[\'Department of Respiratory Medicine, Gansu Provincial Hospital, No 204 Donggang West Road, Lanzhou, 730000, China.\', \'Respiratory Medicine Unit, Department of Medicine & Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden.\', \'Heart and Lung Center, Department of Pulmonary Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.\', \'Department of Respiratory Medicine, Huining People\'s Hospital, Baiyin, China.\', \'Department of Respiratory Medicine, Longxi People\'s Hospital, Dingxi, China.\', \'Department of Internal Medicine, Gansu Provincial Hospital, Lanzhou, China.\', \'Department of Respiratory Medicine, Gansu Provincial Hospital, No 204 Donggang West Road, Lanzhou, 730000, China. wangxj19@lzu.edu.cn.\']
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