1 Research Services, Veterans Affairs Northeast Ohio Healthcare System and Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, Ohio, USA.
2 Veterans Affairs Northeast Ohio Healthcare System, Cleveland, Ohio, USA.
3 Geriatrics Research, Education and Clinical Center, Veterans Affairs Northeast Ohio Healthcare System and Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, Ohio, USA.
4 Medicine, Veterans Affairs Northeast Ohio Healthcare System and Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, Ohio, USA.
5 George Washington Biostatistics Center, George Washington University, Washington, District of Columbia, USA.
6 Center for Antimicrobial Resistance and Epidemiology, Case Western Reserve University-Cleveland Veterans Affairs Medical Center (Case VA CARES), Cleveland, Ohio, USA.
7 Departments of Medicine, Pharmacology, Biochemistry, Molecular Biology & Microbiology, and Proteomics & Bioinformatics, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA.