[1] Veterans Affairs Medical Center,Center for Chronic Disease Outcomes Research
[2] University of Minnesota,Departments of Medicine
[3] University of Minnesota,Laboratory Medicine and Pathology
[4] University of California,Division of Epidemiology, Department of Family and Preventative Medicine
[5] St. Michael’s Hospital and University of Toronto,Division of Endocrinology
[6] Oregon Health Sciences University,Geriatric Research Education and Clinical Center
[7] California Pacific Medical Center Research Institute,undefined
[8] Veterans Affairs Medical Center,undefined