1. Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400042, P.R. China
2. Department of Endocrine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400042, P.R. China
3. Department of General Practice, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400042, P.R. China