1. The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China.
2. Department of Endocrinology, Xuzhou Central Hospital; Affiliated Hospital of Medical College of Southeast University; Affiliated Hospital of Nanjing University of Chinese Medicine, Xuzhou Clinical School of Xuzhou Medical University, Xuzhou Clinical School of Nanjing Medical University, Xuzhou, Jiangsu, China.