1. Department of Anesthesiology, Third Xiangya Hospital, Central South University, Changsha, China
2. Department of spine surgery, Third Xiangya Hospital, Central South University, Changsha, China
3. Department of Clinical Laboratory Medicine, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, P.R. China
4. Department of Hematology, The People’s Hospital of Liuzhou City, Guangxi, P. R. China
5. Department of Hematology, The Qinghai Provincial People’s Hospital, Xining, China