1. Department of Endocrinology and metabolism, Affiliated Hospital of Zunyi Medical University, Zunyi, China
2. Department of Nuclear Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
3. Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
4. Key Laboratory of Diagnostic Medicine (Ministry of Education), and Department of Clinical Biochemistry, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China