1. Laboratory of Hematologic Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, P. R. China
2. Faculty of Pharmacy, Shaanxi University of Science & Technology, Xi’an 710021, P. R. China
3. College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an 710021, P. R. China
4. Medical College, Guizhou University, Guiyang 550025, P. R. China
5. Zhuhai Jinan Selenium Source Nanotechnology Co., Ltd., Zhuhai 519030, P. R. China