1. Department of Cardiology the First Affiliated Hospital of Shantou University Medical College 57 Changping Road Shantou 515041 China
2. Division of Cardiology Pauley Heart Center, Virginia Commonwealth University Richmond VA USA
3. Department of Medicine Yale New Haven Health Greenwich Hospital Greenwich CT USA
4. Department of Mathematical Sciences Worcester Polytechnic Institute Worcester MA USA
5. Department of Medicine Metrowest Medical Center Framingham MA USA
6. Wafic Said Molecular Cardiology Research Laboratory Texas Heart Institute Houston TX USA
7. Clinical Research Center the First Affiliated Hospital of Shantou University Medical College Shantou China