[1] Edward Hines Jr VA Hosp, Ctr Innovat Complex Chron Healthcare, Dept Vet Affairs, Hines, IL 60141 USA
[2] Loyola Univ, Stritch Sch Med, Dept Med, Div Infect Dis, Maywood, IL 60153 USA
[3] Univ Illinois, Dept Pharm Syst Outcomes & Policy, Chicago, IL USA
[4] Northwestern Univ, Dept Phys Med & Rehabil, Feinberg Sch Med, Chicago, IL 60611 USA
[5] Michael E DeBakey VA Med Ctr, Houston Ctr Innovat Qual Effectiveness & Safety, Dept Vet Affairs, Houston, TX USA
[6] William S Middleton Mem VA Med Ctr, Dept Vet Affairs, Madison, WI USA
[7] Univ Wisconsin, Dept Med, Div Infect Dis, Sch Publ Hlth & Med, Madison, WI USA
[8] Lexington VA Med Ctr, Dept Vet Affairs, Lexington, KY USA
[9] VA Salt Lake City Healthcare Syst, Dept Vet Affairs, Salt Lake City, UT USA
[10] Univ Utah, Dept Med, Div Epidemiol, Salt Lake City, UT 84112 USA
[11] Portland VA Healthcare Syst, Dept Vet Affairs, Portland, OR USA
[12] Oregon Hlth & Sci Univ, Dept Med, Div Infect Dis, Portland, OR 97201 USA
[13] Iowa City VA Hlth Care Syst, Dept Vet Affairs, Iowa City, IA USA
[14] Univ Iowa, Dept Pathol, Carver Coll Med, Iowa City, IA 52242 USA
[15] Univ Iowa, Dept Internal Med, Carver Coll Med, Iowa City, IA 52242 USA
[16] Northwestern Univ, Ctr Healthcare Studies, Feinberg Sch Med, Chicago, IL 60611 USA
[17] Northwestern Univ, Dept Prevent Med, Feinberg Sch Med, Inst Publ Hlth & Med, Chicago, IL 60611 USA