Active encouragement of physical activity during school recess.
Morabia
Alfredo
A
Center for the Biology of Natural Systems, Queens College-CUNY, 163-03 Horace Harding Expressway, Flushing, NY 11365, USA. Preventive.Medicine@qc.cuny.edu
Costanza
Michael C
MC
D015444:Exercise; D006293:Health Promotion; D006801:Humans; D007899:Leisure Activities; D009043:Motor Activity; D012574:Schools