[1] Univ Michigan, Canc Ctr 3312, Dept Dermatol, Ann Arbor, MI 48109 USA
[2] Univ Michigan, Dept Radiat Oncol, Ann Arbor, MI 48109 USA
[3] Univ Kiel, Dept Dermatol, D-2300 Kiel, Germany
[4] Univ Kiel, Dept Immunol, D-2300 Kiel, Germany
[5] Henry Ford Hosp, Dept Dermatol, Detroit, MI 48202 USA
[6] Ann Arbor Vet Affairs Hosp, Ann Arbor, MI USA