1. Department of Dermatology, University of California, San Francisco, San Francisco, CA 94107, USA.
2. Dermatology Service, San Francisco Veterans Administration Health Care System, San Francisco, CA 94121, USA.
3. Department of Dermatology, Second Affiliated Hospital, School of Medicine, Xi’an Jiaotong University, Xi’an 710004, China.
4. Dermatopathology Service, University of California, San Francisco, San Francisco, CA 94107, USA.
5. Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon.
6. Enable Medicine, Menlo Park, CA 94025, USA.
7. Department of Plastic Surgery, University of California, San Francisco, San Francisco, CA 94143, USA.
8. Departments of Dermatology and Biochemistry and Molecular Genetics, Feinberg School of Medicine, Chicago, IL 60611, USA.
9. Department of Dermatology, University of California, Fresno, CA 93701,USA.
10. Department of Statistics, University of California, Berkeley, Berkeley, CA 94720, USA.