TY  - RPRT
TI  - Activity and affect among the aged.
AU  - R H Chang
AU  - R A Dodder
PY  - 1985
DO  - 10.1080/00224545.1985.9713515
UR  - https://pubmed.ncbi.nlm.nih.gov/4021447/
ID  - 4021447
ER  -