[1] Med Univ Gdansk, Dept Dermatol Venereo Ogy & Allergol, 17 Smoluchowskiego St, PL-80214 Gdansk, Poland
[2] Med Univ Bialystok, Dept Paediat Paediat Gastroenterol & Allergol, Bialystok, Poland
[3] Poznan Univ Med Sci, Dept Dermatol, Poznan, Poland
[4] Med Univ Warsaw, Dept Dermatol & Immunodermatol, Warsaw, Poland
[5] Med Univ Warsaw, Dept Dermatol, Warsaw, Poland
[6] Med Univ Warsaw, Dept Paediat Pneumonol & Allergol, Warsaw, Poland
[7] Med Univ Wroclaw, Dept Family Med, Wroclaw, Poland
[8] Pomeranian Med Univ, Dept Paediat & Paediat Oncol, Szczecin, Poland
[9] Jagieilonian Univ, Dept Expt Dermatol & Cosmetol, Med Coll, Krakow, Poland
[10] Stefan Zeromski Specialist Hosp, Dermatol Ward, Krakow, Poland
[11] Med Univ Lodz, Dept Dermatol Paediat & Oncol Dermatol, Lodz, Poland
[12] Med Univ, Dept Dermatol Venereol & Paediat Dermatol, Lublin, Poland
[13] Jan Kochanowski Univ, Fac Med & Hlth Sci, Dept Dermatol, Kielce, Poland
[14] Med Univ Warsaw, Dept Dermatol & Venereol, Warsaw, Poland
[15] Univ Rzeszow, Dept Dermatol, Rzeszow, Poland
[16] Med Univ Wroclaw, Dept Dermatol Venereol & Allergol, Wroclaw, Poland