[1] Univ Calif Los Angeles, David Geffen Sch Med, Div Dermatol, Dept Med, Los Angeles, CA 90024 USA
[2] Univ Alabama Birmingham, Dept Dermatol, Birmingham, AL USA
[3] Univ Pittsburgh, Sch Med, Dept Dermatol, Pittsburgh, PA USA
[4] Icahn Sch Med Mt Sinai, Dept Dermatol, New York, NY USA
[5] Univ Calif Los Angeles, Dept Med, Div Dermatol, 911 Broxton Ave,Suite 300, Los Angeles, CA 90024 USA