[1] Helsinki Univ Hosp, Skin & Allergy Hosp, Helsinki, Finland
[2] ESiOR Oy, Kuopio, Finland
[3] Janssen Cilag Oy, Espoo, Finland
[4] Janssen Cilag, Solna, Sweden
[5] Infoderm Oy, Tampere, Finland
[6] Vaasa Cent Hosp, Vaasa, Finland
[7] Turku Univ Hosp, Dept Dermatol, Turku, Finland
[8] Kuopio Univ Hosp, Dept Dermatol, Kuopio, Finland
[9] Univ Eastern Finland, Kuopio, Finland
[10] HUS Helsinki Univ Hosp, Lohja Hosp, Lohja, Finland
[11] Mikkeli Cent Hosp, Dept Dermatol, Mikkeli, Finland
[12] Alands Cent Hosp, Dept Dermatol & Allergol, Maarianhamina, Finland
[13] Keski Suomi Cent Hosp, Dept Dermatol, Jyvaskyla, Finland
[14] Univ Oulu, PEDEGO Res Unit, Oulu, Finland
[15] Oulu Univ Hosp, Dept Dermatol, Oulu, Finland
[16] Oulu Univ Hosp, Med Res Ctr, Oulu, Finland
[17] Savonlinna Cent Hosp, Dept Dermatol, Savonlinna, Finland
[18] Kanta Hame Cent Hosp, Dept Dermatol & Allergol, Hameenlinna, Finland
[19] Paijat Hame Cent Hosp, Dept Dermatol, Lahti, Finland
[20] Kainuu Cent Hosp, Dept Dermatol & Venereol, Kajaani, Finland
[21] Mehilainen Lansi Pohja, Dept Dermatol, Kemi, Finland
[22] Tampere Univ Hosp, Dept Dermatol, Tampere, Finland
[23] Tampere Univ, Tampere, Finland