[1] Oxford Radcliffe Hosp, Dept Dermatol, Oxford, England
[2] John Radcliffe Hosp, Dept Haematol, Oxford, England
[3] S Cleveland Hosp, Dept Dermatol, Middlesbrough, Cleveland, England
[4] New Cross Hosp, Dept Dermatol, Wolverhampton, England
[5] Kaio Univ, Dept Dermatol, Tokyo, Japan
[6] Kurume Univ, Dept Dermatol, Fukuoka, Japan