[1] Univ Gothenburg, Sahlgrenska Acad, Dept Dermatol & Venereol, Gothenburg, Sweden
[2] Sahlgrens Univ Hosp, Dept Dermatol & Venereol, Reg Vastra Gotaland, Gothenburg, Sweden
[3] Bispebjerg Hosp, Dept Dermatol, Copenhagen, Denmark
[4] Johns Hopkins Univ, Sch Med, Neurofibromatosis Therapeut Accelerat Program NTAP, Dept Neurol, Baltimore, MD USA
[5] TOOsonix AS, Horsholm, Denmark
[6] Univ Helsinki, Dept Dermatol & Allergol, Helsinki, Finland
[7] HUS Helsinki Univ Hosp, Dept Dermatol & Allergol, Helsinki, Finland