Affiliations

• ¹ Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
• ² Department of Health Research and Policy, Stanford University, Stanford, CA, USA.
• ³ Department of Family Medicine and Public Health, University of California San Diego, La Jolla, CA, USA.
• ⁴ Division of Intramural Research, National Institute on Aging, Bethesda, MD, USA.
• ⁵ Department of Health and Exercise Science, Wake Forest University, Winston-Salem, NC, USA.
• ⁶ Department of Aging and Geriatric Research, Institute on Aging, University of Florida, Gainesville, FL, USA.
• ⁷ School of Nursing, University of Minnesota, Minneapolis, MN, USA.
• ⁸ Department of Medicine (Geriatrics and Cardiology), University of Pittsburgh, Pittsburgh, PA, USA.
• ⁹ Geriatrics, Research, Education, and Clinical Center, VA Pittsburgh Healthcare System, Pittsburgh, PA, USA.
• ¹⁰ Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, USA.
• ¹¹ Department of Epidemiology and Public Health, University of Maryland, Baltimore, MD, USA.
• ¹² Department of Medicine, Medical School, University of Chicago, Chicago, IL, USA.
• ¹³ Department of Surgery, University of Virginia School of Medicine, Charlottesville, VA, USA.