1. Department of Laboratory Medicine, The Affiliated People's Hospital of Jiangsu University, Zhenjiang Medical School of Nanjing Medical University, Zhenjiang, Jiangsu 212002, P.R. China
2. Department of Endocrinology, The Fifth People's Hospital of Wuhan, Wuhan, Hubei 430050, P.R. China
3. Department of Endocrinology, The Affiliated People's Hospital of Jiangsu University, Zhenjiang Medical School of Nanjing Medical University, Zhenjiang, Jiangsu 212002, P.R. China
4. Division of Hematology and Internal Medicine, Mayo Clinic, Rochester, MN 55902, USA