1. Department of Endocrinology, Chinese PLA General Hospital (301 Hospital), Beijing, China
2. Department of Endocrinology, Bethune International Peace Hospital of PLA, Shijiazhuang, China
3. Department of Neurology, First Affiliated Hospital of Hebei Medical University, Shijiazhuang, China
4. Department of Endocrinology, Armed Police Hospital of Shandong, Shandong, China