[1] Singleton Hosp, Dept Dermatol, Swansea SA2 8QA, W Glam, Wales
[2] Queens Med Ctr, Dept Dermatol, Nottingham NG7 2UH, England
[3] Leeds Gen Hosp, Dept Dermatol, Leeds, W Yorkshire, England
[4] City Hosp, Birmingham Skin Ctr, Birmingham, W Midlands, England
[5] Univ Dundee, Ninewells Hosp & Med Sch, Dept Dermatol, Dundee DD1 9SY, Scotland
[6] Aberdeen Royal Infirm, Dept Dermatol, Aberdeen, Scotland
[7] Royal Gwent Hosp, Dept Dermatol, Newport NPT 2VB, Gwent, Wales
[8] James Cook Univ Hosp, Dept Dermatol, Middlesbrough, Cleveland, England
[9] Univ Wales Hosp, Welsh Inst Dermatol, Cardiff CF4 4XW, S Glam, Wales