1. Department of Infectious Diseases; Leiden University Medical Center; Leiden the Netherlands
2. Department of Surgery and Oncology, Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
3. Department of Surgery; Medical Center Haaglanden/Bronovo Hospital; The Hague the Netherlands
4. Department of Medical Microbiology; University Medical Center Utrecht; Utrecht the Netherlands
5. Department of Rheumatology; Leiden University Medical Center; Leiden the Netherlands