1. Endocrine and Metabolic Diseases, Harbin Medical University, Harbin 150001, Heilongjiang, P.R. China.
2. Department of Cardiology, The First Hospital of Harbin, Harbin 150001, Heilongjiang, P.R. China.
3. Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang, P.R. China.