Design and implementation of the Healthy Lifestyle in Europe by Nutrition in Adolescence Cross-Sectional Study. - Moreno,LA.; De Henauw,S.; Gonzalez-Gross,M.; Kersting,M.; Molnar,D.; Gottrand,F.; Barrios,L.; Sjostrom,M.; Manios,Y.; Gilbert,CC.; Leclercq,C.; Widhalm,K.; et al. (Int J Obes (Lond), 2008)