1. Department of Endocrinology and Metabolism, the First Hospital of China Medical University, Shengyang, P.R. China.
2. Department of Endocrinology and Metabolism, The People's Hospital of Liaoning Province. Shenyang, P.R. China.
3. The Endocrine Institute of China Medical University, The Liaoning Provincial Key Laboratory of Endocrine diseases. Shenyang, P.R. China.