[1] Univ Hamburg, Krankenhaus Eppendorf, Abt Allg Pharmakol, D-20246 Hamburg, Germany
[2] Univ Hamburg, Krankenhaus Eppendorf, Chirurg Klin, D-20246 Hamburg, Germany
[3] Univ Hamburg, Krankenhaus Eppendorf, Inst Pathol, D-20246 Hamburg, Germany
[4] Humboldt Universitat Berlin, Inst Pathol Charite, D-10117 Berlin, Germany