1. Emergency department Shenzhen University General Hospital Shenzhen China
2. School of Medicine Institute of Integrated Medicine, Qingdao University Qingdao China
3. Department of Respiratory Medicine Sami Medical Center Shenzhen China
4. First Clinical Medical College Shandong University of Traditional Chinese Medicine Jinan China
5. Physical Examination Centre Yuhuangding Hospital Affiliated to Qingdao University Yantai Shandong China