Affiliation: | 1.Medicine Service, Birmingham VA Medical Center, 700 19th St S, AL, 35233, Birmingham, USA ;2.Department of Medicine at School of Medicine, University of Alabama at Birmingham, 510 20th Street South, Birmingham, AL, 35294, United States ;3.Division of Epidemiology at School of Public Health, University of Alabama at Birmingham, 1720 Second Ave South, Birmingham, AL, 35294-0022, USA ;4.University of Alabama at Birmingham, Faculty Office Tower 805B, 510 20th Street S, Birmingham, AL, 35294-0022, USA ;5.VA Pittsburgh Healthcare System, Pittsburgh, PA, USA ;6.Phoenix VA Medical Center, Phoenix, AZ, USA ;7.School of Rehabilitation Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, Canada ;8.Children’s Hospital of Eastern Ontario Research Institute, Ottawa, Canada ;9.Department of Pediatrics, Faculty of Medicine, University of Ottawa, Ottawa, Canada ;10.VA Portland Health Care System, Oregon Health & Science University, Portland, OR, USA ;11.Department of Medicine, Oregon Health & Science University, Portland, OR, USA ; |