[1] UNIV MICHIGAN,DEPT DERMATOL,ANN ARBOR,MI 48109
[2] UNIV MICHIGAN,DEPT RADIAT ONCOL,ANN ARBOR,MI 48109
[3] UNIV MICHIGAN,DEPT BIOSTAT,ANN ARBOR,MI 48109
[4] CHRISTIAN ALBRECHTS UNIV KIEL,DEPT DERMATOL,D-2300 KIEL,GERMANY
[5] CHRISTIAN ALBRECHTS UNIV KIEL,DEPT IMMUNOL,D-2300 KIEL,GERMANY