1 Division of Dermatology, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.
2 Division of Dermatopathology, Department of Pathology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.
3 Immunodermatology Laboratory, Department of Dermatology, University of Utah, Salt Lake City, Utah.
4 Division of Rheumatology, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.