[1] Mayo Clin, Div Community Internal Med, 200 First St SW, Rochester, MN 55905 USA
[2] Mayo Clin, Div Geriatr & Gerontol, Rochester, MN 55905 USA
[3] Mayo Clin, Robert & Arlene Kogod Ctr Aging, Rochester, MN 55905 USA
[4] Mayo Clin, Div Hlth Care Policy & Res, Kern Ctr Sci Healthcare Delivery, Rochester, MN 55905 USA