TY  - RPRT
TI  - Assessing physical activity during recess using accelerometry.
AU  - Nicola D Ridgers
AU  - Gareth Stratton
AU  - Stuart J Fairclough
PY  - 2004
DO  - 10.1016/j.ypmed.2004.10.023
UR  - https://pubmed.ncbi.nlm.nih.gov/15917000/
ID  - 15917000
ER  -