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ARCHPEDIATRICS.2011.1133
ARCHPEDIATRICS.2011.1133
http://dx.doi.org/10.1001/ARCHPEDIATRICS.2011.1133
The impact of state laws and district policies on physical education and recess practices in a nationally representative sample of US public elementary schools.
P356
Q36468995-554AB95D-8F2D-4E9E-8631-3593E64BBD8C
P356
ARCHPEDIATRICS.2011.1133
http://dx.doi.org/10.1001/ARCHPEDIATRICS.2011.1133