TY  - RPRT
TI  - Physical performance measures in aging research.
AU  - J M Guralnik
AU  - L G Branch
AU  - S R Cummings
AU  - J D Curb
PY  - 1989
DO  - 10.1093/geronj/44.5.m141
UR  - https://pubmed.ncbi.nlm.nih.gov/2768767/
ID  - 2768767
ER  -