[1] NCI, Expt Immunol Branch, NIH, Bethesda, MD 20892 USA
[2] Heidelberg Univ, Dept Internal Med, D-6900 Heidelberg, Germany
[3] Univ Hosp Mannheim, Med Dept 5, Mannheim, Germany
[4] Univ Saarland, Inst Med Microbiol, D-6600 Saarbrucken, Germany
[5] Univ Giessen, Dept Internal Med, D-35390 Giessen, Germany
[6] Univ Giessen, Inst Biochem, D-35390 Giessen, Germany
[7] Res Tumor Biol Ctr, Dept Vasc Biol & Angiogenesis, Freiburg, Germany
[8] Univ Cologne, Dept Dermatol, D-5000 Cologne 41, Germany
[9] Univ Hosp Munster, Inst Med Microbiol, Munster, Germany