[1] Soder Sjukhuset, Karolinska Inst, Dept Dermatol, Plan 5, S-11883 Stockholm, Sweden
[2] Univ Helsinki, Cent Hosp, Biomedicum Helsinki, Dept Dermatol, Helsinki, Finland
[3] Karolinska Inst, Novum, Clin Res Ctr, Huddinge, Sweden
[4] Karolinska Inst, Novum, Dept Biosci, Huddinge, Sweden
[5] Tokyo Med Univ, Dept Obstet & Gynecol, Tokyo, Japan