[1] Brigham & Womens Hosp, Dept Dermatol, Boston, MA USA
[2] Harvard Med Sch, Boston, MA USA
[3] Tufts Univ, Sch Med, Boston, MA USA
[4] Univ Penn, Dept Dermatol, Philadelphia, PA USA
[5] Univ Penn, Perelman Sch Med, Philadelphia, PA USA
[6] Brigham & Womens Hosp, Dept Dermatol, 221 Longwood Ave, Boston, MA 02115 USA