[1] Karolinska Inst, Karolinska Hosp, Dept Dermatol & Venerol, S-10401 Stockholm, Sweden
[2] Karolinska Inst, Karolinska Hosp, Dept Clin Immunol, S-10401 Stockholm, Sweden
[3] Karolinska Inst, Karolinska Hosp, Reg Ctr Pharmacovigilance, S-10401 Stockholm, Sweden