1. Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
2. Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
3. Department of Pathophysiology, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China