[1] Univ Calif San Francisco, Dept Dermatol, 1701 Div St, San Francisco, CA 94115 USA
[2] Med Coll Wisconsin, Dept Dermatol, Milwaukee, WI USA
[3] Childrens Mercy Hosp & Clin, Div Dermatol, Kansas City, MO USA
[4] Lenox Hill Hosp, Dept Pediat Hematol, Northwell Hlth, New York, NY USA
[5] Indiana Univ, Dept Dermatol, Sch Med, Indianapolis, IN USA
[6] Indiana Univ Sch Med, Dept Pediat, Indianapolis, IN USA
[7] Texas Childrens Hosp, Baylor Coll Med, Dept Dermatol, Houston, TX USA
[8] Columbia Univ, Dept Dermatol, New York, NY USA
[9] Columbia Univ, Dept Pediat, New York, NY USA
[10] Univ Calif Los Angeles, Div Dermatol, David Geffen Sch Med, Los Angeles, CA USA
[11] Ohio State Univ, Nationwide Childrens Hosp, Dept Pediat, Div Dermatol,Coll Med, Columbus, OH USA
[12] Hosp San Juan Dios, Barcelona, Spain
[13] Mayo Clin, Dept Dermatol & Pediat, Rochester, MN USA
[14] Univ Montreal, Justine Univ Hosp Ctr, Dept Pediat, Div Dermatol, Montreal, PQ, Canada
[15] Northwestern Univ, Feinberg Sch Med, Dept Pediat, Chicago, IL USA
[16] Ann & Robert H Lurie Childrens Hosp Chicago, Chicago, IL USA
[17] Northwestern Univ, Feinberg Sch Med, Dept Dermatol, Chicago, IL USA
[18] Ann & Robert H Lurie Childrens Hosp Chicago, Chicago, IL USA
[19] Univ Texas Hlth Sci Ctr, Dept Dermatol, San Antonio, TX USA
[20] Pontificia Univ Catolica Chile, Fac Med, Dept Dermatol, Santiago, Chile
[21] NYU Langone, Dept Pediat, Vasc Program, New York, NY USA