a1 Department of Anesthesiology and Intensive Care Medicine, University Hospital Carl Gustav Carus, Fetscherstrasse 74, D-01307 Dresden, Germany
a2 Department of Clinical Chemistry, University Hospital Carl Gustav Carus, Dresden, Germany
a3 Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Dresden, Germany
Correspondence:
c1 *Corresponding author: Dr A. R. Heller MD, fax +49 351/458 4336, email heller-a@rcs.urz.tu-dresden.de