?:authorAffiliation
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[\'Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi\'an Jiaotong University, Xi\'an, Shaanxi, P.R. China.\', \'Xi\'an Chest Hospital, Xi\'an, Shaanxi, P.R. China.\', \'Ankang City Central Hospital, Ankang, Shaanxi, P.R. China.\', \'The Six Affiliated Hospital of Hubei University of Medicine, Shiyan, Hubei, P.R. China.\', \'Baoji Municipal Central Hospital, Baoji, Shaanxi, P.R. China.\', \'Hanzhong Central Hospital, Hanzhong, Shaanxi, P.R. China.\', \'Weinan Central Hospital, Weinan, Shaanxi, P.R. China.\', \'Xianyang Central Hospital, Xianyang, Shaanxi, P.R. China.\', \'Shangluo Central Hospital, Shangluo, Shaanxi, P.R. China.\', \'Department of Respiratory and Critical Care Medicine, Yanan University Affiliated Hospital, Yan\'an, Shaanxi, P.R. China.\', \'Department of Infectious Diseases, Yan\'an Second People\'s Hospital, Yan\'an, Shaanxi, P.R. China.\', \'Department of Respiratory Medicine, People\'s Hospital of Tongchuan, Tongchuan, Shaanxi, P.R. China.\']
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