TY  - RPRT
TI  - Neighborhood-based differences in physical activity: an environment scale evaluation.
AU  - Brian E Saelens
AU  - James F Sallis
AU  - Jennifer B Black
AU  - Diana Chen
PY  - 2003
DO  - 10.2105/ajph.93.9.1552
UR  - https://pubmed.ncbi.nlm.nih.gov/12948979/
ID  - 12948979
ER  -