[1] Columbia Univ, Vagelos Coll Phys & Surg, New York, NY USA
[2] Columbia Univ, Vagelos Coll Phys & Surg, Dept Dermatol, 161 Fort Washington Ave,12th Floor, New York, NY 10032 USA
[3] Univ Colorado, Sch Med, Dept Dermatol, Aurora, CO USA
[4] Univ Colorado, Sch Med, Dept Pediat, Aurora, CO USA
[5] Univ Texas Austin, Dell Med Sch, Dept Pediat, Austin, TX USA
[6] Univ Texas Austin, Dell Med Sch, Dept Med Dermatol, Austin, TX USA
[7] Univ Minnesota, Dept Dermatol, Minneapolis, MN USA
[8] Hosp Sick Children Dermatol, Dept Pediat, Div Dermatol, Toronto, ON, Canada
[9] Phoenix Childrens Hosp, Dept Dermatol, Phoenix, AZ USA
[10] Columbia Univ, Vagelos Coll Phys & Surg, Dept Pediat, New York, NY USA