[1] Univ Mainz Klinikum, Anasthesiol Klin, Mainz, Germany
[2] Klinikum Kassel, Klin Anasthesiol Intens Med & Schmerztherapie, Kassel, Germany
[3] Univ Cologne, Fak Med, Biochem & Expt Abt, D-5000 Cologne, Germany
[4] Klinikum Philipps Univ Marburg, Klin Anasthesiol & Operat Intens Med, Marburg, Germany
[5] Klinikum Philipps Univ Marburg, Klin Visceral Thorax & Gefasschirurg, Marburg, Germany
[6] Univ Mainz Klinikum, Klin & Poliklin Unfallchirurg, Mainz, Germany
[7] Geschaftsstelle Berlin, Generalsekretar Deutsch Gesell Chirurg, Berlin, Germany
[8] Univ Klinikum Munster, Klin & Poliklin Anasthesiol & Operat Intens Med, Munster, Germany