Affiliation: | 1. Department of Respiratory Medicine, Fujian Provincial Hospital, Provincial Clinic College of Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China;2. Department of General Medicine, Fujian Provincial Hospital, Provincial Clinic College of Clinical Medicine of Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China;3. Department of Infectious Disease, Fujian Provincial Hospital, Fuzhou, Fujian Province, People's Republic of China |