[1] Univ Copenhagen, Herlev & Gentofte Hosp, Dept Dermatol & Allergy, Hellerup, Denmark
[2] Herlev & Gentofte Hosp, Copenhagen Res Grp Inflammatory Skin CORGIS, Hellerup, Denmark
[3] Northwestern Univ, Feinberg Sch Med, Dept Dermatol, Chicago, IL 60611 USA
[4] Northwestern Univ, Feinberg Sch Med, Dept Prevent Med, Chicago, IL 60611 USA
[5] Northwestern Univ, Feinberg Sch Med, Dept Med Social Sci, Chicago, IL 60611 USA
[6] Herlev & Gentofte Hosp, Natl Allergy Res Ctr, Hellerup, Denmark