1. Department of Endocrinology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
2. 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, China
3. Department of Geriatrics, Guangdong Provincial Geriatrics Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
4. Department of Thyroid Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
5. Department of Endocrinology and Metabolism, Jilin Cancer Hospital, Changchun, Jilin, China