1. Department of Dermatology, Venereology and Leprology
2. Department of Immunopathology; Postgraduate Institute of Medical Education and Research; Chandigarh 160012 India
3. Department of Dermatology; Sunnybrook Health Sciences Centre; University of Toronto; Toronto ON Canada
4. Department of Dermatology; Kurume University School of Medicine; Kurume University Institute of Cutaneous Cell Biology; 67 Asahimachi Kurume Fukuoka 830-0011 Japan