1. Department of Surgery, Leiden University Medical Center, Leiden, The Netherlands;
2. Department of Clinical Chemistry and Laboratory Medicine, Leiden University Medical Center, Leiden, The Netherlands;
3. Department of Cell Biology and Histology, Academic Medical Center, University of Amsterdam, The Netherlands;
4. Department of Clinical Genetics, Maastricht University Medical Center, Maastricht, The Netherlands;
5. Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, The Netherlands; and
6. Bioanalytical Research Laboratory for NO, Oxidative Stress, and Eicosanoids, Centre of Pharmacology and Toxicology, Hannover Medical School, Hannover, Germany