1. Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shannxi 710032, China.
2. Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA.
3. Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA.
4. Department of Dermatology, Northwestern University, Chicago, IL 60611, USA.
5. Pediatric Hematology/Oncology, Mott Children’s Hospital, University of Michigan, Ann Arbor, MI 48109, USA.
6. Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
7. Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA.