1. Department of Ophthalmology, Affiliated Hospital of Weifang Medical University, Weifang, China
2. Department of Hematology, Affiliated Hospital of Weifang Medical University, Weifang, China
3. Department of Emergency, Affiliated Hospital of Weifang Medical University, Weifang, China
4. Operating Room, Affiliated Hospital of Weifang Medical University, Weifang, China