1. Department of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
2. Department of Internal Medicine, Haga Teaching Hospital, The Hague, The Netherlands
3. Department of Internal Medicine, Alrijne Hospital, Leiderdorp, The Netherlands
4. Department of Internal Medicine, Reinier de Graaf Hospital, Delft, The Netherlands
5. Department of Internal Medicine, Groene Hart Ziekenhuis, Gouda, The Netherlands
6. Department of Medical Microbiology and Infection Prevention, Groene Hart Ziekenhuis, Gouda, The Netherlands