1. Department of Pathology and
2. Department of Pathology, Shandong University School of Medicine, Jinan;
3. Division of Rheumatology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas;
4. Department of Nephrology, Shanghai Tenth People's Hospital of Tongji University, Shanghai;
5. Department of Nephrology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; and
6. Division of Nephrology and Hypertension, University of California, Irvine, California