[1] Univ Munich, Dept Dermatol & Allergy, Munich, Germany
[2] Dermicis Skin Clin, Dept Dermatol Pediat Dermatol & Hair, Alkmaar, Netherlands
[3] Dermicis Skin Clin, Dept Dermatol Pediat Dermatol & Hair, Rotterdam, Netherlands
[4] Aarhus Univ Hosp, Dept Dermatol, DK-8000 Aarhus, Denmark
[5] Univ Bern, Inselspital, Univ Hosp Bern, Dept Dermatol, CH-3010 Bern, Switzerland
[6] Heim Pal Childrens Hosp, Budapest, Hungary
[7] Dermatologikum, Hamburg, Germany
[8] Univ Hosp UMAS, Dept Dermatol, Malmo, Sweden
[9] Univ Nantes, Dept Dermatol, Nantes, France
[10] Univ Bordeaux, INSERM 1035, Ctr Reference Malad Rares Peau, Serv Dermatol & Dermatol Pediat, Talence, France
[11] Univ Utrecht, Dept Dermatol, Utrecht, Netherlands
[12] MHH, Hautklin Linden, Dept Dermatol, Hannover, Germany
[13] Med Univ Gdansk, Dept Dermatol Venereol & Allergol, Gdansk, Poland
[14] Tech Univ Munich, Dept Dermatol & Allergy Biederstein, D-80290 Munich, Germany
[15] CK CARE, Davos, Switzerland
[16] ZAUM Ctr Allergy & Environm, Munich, Germany