Institution: | Departments of Dermatology and;Histopathology, Addenbrooke's Hospital, Cambridge, UK,;Department of Haematology, Hinchingbrooke Hospital, Huntingdon, Cambridgeshire, UK.;Corresponding author, Department of Dermatology, Leeds General Infirmary, Great George Street, Leeds LS1 3EX, UK, tel. +113 3922273;fax +113 3923565 |