25-hydroxyvitamin D is differentially associated with calcium intakes of Northern, Central, and Southern European adolescents: Results from the HELENA study

1. Julian, C.
2. González-Gross, M.
3. Breidenassel, C.
4. Mouratidou, T.
5. Vicente-Rodriguez, G.
6. Gracia-Marco, L.
7. Ferrari, M.
8. Widhalm, K.
9. Molnár, D.
10. Kafatos, A.
11. Gottrand, F.
12. Manios, Y.
13. de la O, A.
14. Kersting, M.
15. De Henauw, S.
16. Gunter, M.J.
17. Moreno, L.A.
18. Huybrechts, I.