1 Chair of Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University in Torun, Faculty of Medicine, Bydgoszcz, Poland.
2 Institute of Cutaneous Cell Biology, Kurume University, Fukuoka, Japan.
3 Department of Dermatology and Immunodermatology, Medical University of Warsaw, Warsaw, Poland.
4 Department of Dermatology, School of Medicine, Kurume University, Fukuoka, Japan.