1. Key Laboratory of Medical Metal Materials of Shanxi Province, College of Materials Science and Engineering, Taiyuan University of Technology 1 , Taiyuan, Shanxi Province 030024, People’s Republic of China
2. Department of Cardiology, Shanxi Cardiovascular Hospital, The Affiliated Cardiovascular Hospital of Shanxi Medical University 2 , Taiyuan 030001, China
3. Shanxi Biological Research Institute Co. Ltd. 3 , Taiyuan, Shanxi Province, China