British Journal of Nutrition

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Invited commentary

Achieving physiological change in school-based intervention trials: what makes a preventive intervention successful?

Leslie A. Lytlea1, David R. Jacobs Jra1a2, Cheryl L. Perrya1 and Knut-Inge Kleppa2

a1 University of Minnesota School of Public Health 1300 South Second Street Minneapolis MN 55454 USA

a2 Institute for Nutrition Research University of Oslo PO Box 1046 Blindern N-0316 Oslo Norway