1. University of California San Francisco School of Medicine San Francisco California USA
2. University of Colorado Anschutz School of Medicine Aurora Colorado USA
3. Department of Dermatology University of California San Francisco California USA
4. Department of Diagnostic Radiology Oregon Health & Science University Portland Oregon USA
5. Department of Dermatology University of Colorado Anschutz Medical College Aurora Colorado USA
6. Department of Dermatology University Hospitals Cleveland Medical Center Case Western Reserve University School of Medicine Cleveland Ohio USA