1. Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
2. Institute of Atomic and Molecular Physics, Anhui Normal University, Wuhu 241000, P.R. China
3. Department of Endocrinology and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China