1. College of Mathematics and Computer Science, Fuzhou University, Fuzhou 350108, China
2. Department of Cardiology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
3. School of Computing, University of South Alabama, Mobile, AL 36688, USA
4. College of Allied Health Professions, University of South Alabama, Mobile, AL 36688, USA
5. Department of Pharmacology, College of Medicine, University of South Alabama, Mobile, AL 36688, USA