[1] Rhein Westfal TH Aachen, Dept Dermatol & Allergol, Aachen, Germany
[2] Univ Heidelberg Hosp, Dept Gen Surg, Heidelberg, Germany
[3] Univ Debrecen, Dept Biochem & Mol Biol, H-4012 Debrecen, Hungary
[4] German Canc Res Ctr, Div Translat Immunol, D-6900 Heidelberg, Germany