Document Type : Original Article
Authors
1 Department of Respiratory Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
2 Department of Respiratory Medicine, People’s Hospital of RizhaoLanshan, Rizhao, China
3 Department of Pharmacy, Qilu Hospital of Shandong University (Qingdao), Qingdao, China
4 4Department of President’s Office, The Affiliated Hospital of Qingdao University, Qingdao, China
Abstract
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