1. Academic Medical Center, University of Amsterdam; Department of Clinical Epidemiology, Biostatistics and Bioinformatics; P.O. Box 22700 Amsterdam Netherlands 1100 DE
2. VU University Medical Center; Department of Medical Microbiology and Infection Control; PO Box 7057 Amsterdam Netherlands 1007 MB
3. Academic Medical Center; Department of Clinical Epidemiology, Biostatistics and Bioinformatics; Meibergdreef 9 Amsterdam Netherlands 1105 AZ
4. Academic Medical Centre; Department of Medical Microbiology; Amsterdam Netherlands
5. Julius Center for Health Sciences and Primary Care / University Medical Center Utrecht; Cochrane Netherlands; Room Str. 6.126 P.O. Box 85500 Utrecht Netherlands 3508 GA
6. Bronovo Hospital; Department of Clinical Microbiology and Infection Control; The Hague Netherlands
7. University Medical Center Utrecht; Julius Center for Health Sciences and Primary Care; PO Box 85500 Utrecht Netherlands 3508 GA Utrecht
8. West China Hospital, Sichuan University; Chinese Cochrane Centre, Chinese Evidence-Based Medicine Centre; No. 37, Guo Xue Xiang Chengdu Sichuan China 610041