[1] Univ Calif San Francisco, Sch Med, San Francisco, CA 94143 USA
[2] Univ Calif San Francisco, Dept Dermatol, San Francisco, CA 94143 USA
[3] Stanford Univ, Dept Dermatol, Palo Alto, CA USA
[4] Univ Calif San Francisco, Dept Radiol & Biomed Imaging, San Francisco, CA 94143 USA
[5] Univ Calif San Francisco, Dept Neurol & Pediat, San Francisco, CA 94143 USA
[6] Northwestern Univ, Lurie Childrens Hosp, Feinberg Sch Med, Dept Dermatol, Chicago, IL USA
[7] Univ Wisconsin, Dept Dermatol, Madison, WI USA
[8] Baylor Coll Med, Texas Childrens Hosp, Dept Dermatol, Houston, TX USA
[9] Univ Toronto, Hosp Sick Children, Temerty Fac Med, Div Pediat Dermatol, Toronto, ON, Canada
[10] Univ Montreal, St Justine Univ Hosp Ctr, Dept Pediat, Div Dermatol, Montreal, PQ, Canada
[11] Med Coll Wisconsin, Dept Dermatol, Milwaukee, WI USA
[12] Harvard Med Sch, Boston Childrens Hosp, Dept Dermatol, Boston, MA USA
[13] Hosp Santa Creu & Sant Pau, Dept Dermatol, Barcelona, Spain
[14] Oregon Hlth & Sci Univ, Dept Dermatol & Pediat, Portland, OR USA
[15] Univ Penn, Childrens Hosp Philadelphia, Perelman Sch Med, Dept Pediat & Dermatol, Philadelphia, PA USA
[16] Indiana Univ Sch Med, Dept Dermatol, Indianapolis, IN USA
[17] Univ Calif San Diego, Rady Childrens Hosp, Dept Dermatol, San Diego, CA USA
[18] Emory Univ, Sch Med, Dept Dermatol, Atlanta, GA USA
[19] Childrens Mercy Hosp & Clin, Div Dermatol, Kansas City, MO USA
[20] Columbia Univ, Vagelos Coll Phys & Surg, Dept Dermatol, New York, NY USA