[1] Brown Univ, Warren Alpert Med Sch, Providence, RI 02903 USA
[2] Florida State Univ, Coll Med, Tallahassee, FL 32304 USA
[3] Childrens Mercy Hosp & Clin, Kansas City, MO 64108 USA
[4] Washington Univ, Div Dermatol, Dept Med, St Louis, MO 63110 USA
[5] Univ Penn, Dept Dermatol, Perelman Sch Med, Philadelphia, PA 19104 USA
[6] Perelman Ctr Adv Med, Dept Dermatol, 3400 Civ Ctr Blvd, Philadelphia, PA 19104 USA