1. Department of Pulmonary and Critical Care Medicine, Liyuan Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, People’s Republic of China
2. Department of Cardiology, Hubei No.3 People’s Hospital of Jianghan University, Wuhan, People’s Republic of China
3. Department of Geriatrics Medicine, Liyuan Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, People’s Republic of China