1 Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China.
2 Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, China.
3 Department of Endocrinology and Metabolism, Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout Affiliated Hospital of Qingdao University, Institute of Metabolic Diseases, Qingdao University and Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Qingdao, China.