1. Department of Medicine, Northeast Ohio Medical University, Rootstown, Ohio, USA
2. Medicine Service, Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, Ohio, USA
3. Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
4. Research Service, Veterans Affairs Northeast Ohio Healthcare System, Cleveland, OH, USA
5. CWRU-Cleveland VAMC Center for Antimicrobial Resistance and Epidemiology, Cleveland, OH, USA
6. Clinical Research in Pneumonia and Sepsis, Vall d’Hebron Institute of Research, Barcelona, Spain
7. Clinical Research, Centre Hospitalier Universitaire Maribeau, Nimes, France