1. Department of Medical Microbiology and Infectious Diseases, Erasmus MC University Medical Center, Rotterdam, The Netherlands
2. Department of Medical Microbiology, Haaglanden Medisch Centrum, The Hague, The Netherlands
3. CATOR, Center for Antimicrobial Optimized Treatment—Rotterdam, Rotterdam, The Netherlands
4. Department of Hospital Pharmacy, Erasmus MC University Medical Center, Rotterdam, The Netherlands
5. Clinical Microbiology Laboratory, Attikon University General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece