1. Department of Surgery; Bronovo Hospital; The Hague The Netherlands
2. Department of Surgery; Leiden University Medical Center; Leiden The Netherlands
3. School of Pharmacy; University of Nottingham; Nottingham UK
4. College of Human and Health Sciences; Swansea University; Swansea UK
5. Biomonde GmbH; Barsbüttel; Germany
6. Department of Infectious Diseases; Leiden University Medical Center; Leiden The Netherlands