1. Department of Endocrinology, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, PR China
2. Department of Allergy and Rheumatology, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, PR China
3. Department of Public Health Nutrition, Medical School, Qinghai University, Xining, PR China
4. Laboratory Center, the Affiliated People's Hospital of Jiangsu University, Zhenjiang, PR China