1. Department of Endocrinology, Beijing Tongren Hospital, Capital Medical University, Beijing, China
2. Department of Endocrinology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, China
3. School of Materials Science and Physics, China University of Mining and Technology, Xuzhou, China
4. State Laboratory of Surface and Interface Science and Technology, School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China
5. Anhui Sentai WPC Group Share Co., Ltd, Guangde, China