[1] Univ Munster, Univ Klinikum, Inst Pharmakol & Toxikol, D-48149 Munster, Germany
[2] Univ Klinikum Essen, Inst Pathol, D-45147 Essen, Germany
[3] Univ Munster, Med Klin & Poliklin C, D-48149 Munster, Germany
[4] Univ Munster, Univ Klinikum, Klin & Poliklin Anasthesiol & Operat Intesivmed, D-48149 Munster, Germany
[5] Univ Halle Wittenberg, D-06120 Halle, Germany