Relationship between school rhythm and physical activity in adolescents: the HELENA study

1. Vanhelst, J.
2. Béghin, L.
3. Duhamel, A.
4. De Henauw, S.
5. Molnar, D.
6. Vicente-Rodriguez, G.
7. Manios, Y.
8. Widhalm, K.
9. Kersting, M.
10. Polito, A.
11. Ruiz, J.R.
12. Moreno, L.A.
13. Gottrand, F.