1. Department of Endocrinology and Metabolism, Institute of Endocrinology, NHC Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Affiliated Hospital of China Medical University, Shenyang, P.R. China.
2. Department of Endocrinology, Shengjing Hospital, China Medical University, Shenyang, China.
3. Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China.