Objectively measured physical activity during Physical Education and school recess and their associations with academic performance in youth: The UP&DOWN study

1. Esteban-Cornejo, I.
2. Martinez-Gomez, D.
3. Garcia-Cervantes, L.
4. Ortega, F.B.
5. Delgado-Alfonso, A.
6. Castro-Piñero, J.
7. Veiga, A.O.L.