TY  - RPRT
TI  - Physical activity in an ageing population.
AU  - M Schroll
PY  - 2003
DO  - 10.1034/j.1600-0838.2003.20226.x
UR  - https://pubmed.ncbi.nlm.nih.gov/12535319/
ID  - 12535319
ER  -