1. Department of Thoracic Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
2. Emergency Departments, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
3. School of Nursing, Qingdao University, Qingdao 266000, China
4. Department of Critical Care Medicine, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
5. Ophthalmology Department, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
6. Department of Spinal Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
7. Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
8. Office of the Dean, The Affiliated Hospital of Qingdao University, Qingdao, 266000, China