Comparison of subjective ratings of function with observed functional ability of frail older persons.
Janet T. Elam
,
Marshall J. Graney
,
Terinell Beaver
,
Janet T. Elam
,
Marshall J. Graney
,
Terinell Beaver
,
D el Derwi
,
William B. Applegate
,
Stephen T. Miller
1991
American Journal of Public Health
158 citations