1. Department of Laboratory Medicine Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University Qingdao Shandong China
2. Department of Internal Medicine Qilu Hospital of Shandong University Jinan Shandong China
3. Department of Rheumatology Qilu Hospital of Shandong University Jinan Shandong China
4. Department of Laboratory Medicine Qilu Hospital of Shandong University Jinan Shandong China