[1] Univ Nevada, Sch Med, Dept Dermatol, Las Vegas, NV 89154 USA
[2] Touro Univ, Nevada Coll Osteopath Med, Henderson, NV USA
[3] Wake Forest Univ, Sch Med, Dept Dermatol, Winston Salem, NC 27109 USA
[4] Univ Alabama Birmingham, Birmingham, AL USA
[5] Univ Calif Los Angeles, David Geffen Sch Med, Los Angeles, CA USA
[6] Penn State Univ, Coll Med, Hershey, PA USA