[1] Minneapolis VA Health Care System,Geriatric Research Education & Clinical Center
[2] University of California,Department of Epidemiology & Statistics
[3] San Francisco,Center for Chronic Disease Outcomes Research
[4] San Francisco Coordinating Center,Department of Medicine
[5] Minneapolis VA Health Care System,Bone & Mineral Unit, Department of Medicine
[6] University of California,Department of Family Medicine & Public Health
[7] San Francisco,Health Research Center
[8] Oregon Health & Science University,Division of Nephrology
[9] Portland Veterans Affairs Health Care System,Division of General Internal Medicine
[10] University of California,undefined
[11] Park Nicollet Institute for Research and Education,undefined
[12] Tufts Medical Center,undefined
[13] Minneapolis VA Health Care System,undefined