TY  - JOUR
A1  - Wiener, J.M.
A1  - Hanley, R.J.
A1  - Clark, R.
A1  - Van Nostrand, J.F. 
T1  - Measuring the activities of daily living: Comparisons across national surveys
Y1  - 1990
JF  - Journal of Gerontology: Social sciences 
VL  - 45
IS  - 6
SP  - 229
EP  - -237

ER  -