1. Institute of Metabolic Diseases Qingdao University China
2. Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout The Affiliated Hospital of Qingdao University China
3. Department of Endocrinology and Metabolic Diseases The Affiliated Hospital of Qingdao University China
4. Department of Rheumatology and Clinical Immunology The Affiliated Hospital of Qingdao University China
5. Department of Biochemistry University of Otago Dunedin New Zealand