1. GENUD (Growth Exercise, NUtrition and Development) Research Group; University of Zaragoza; Zaragoza Spain
2. Department of Nutrition and Dietetics; Harokopio University; Athens Greece
3. Department of Movement and Sport Sciences; Ghent University; Ghent Belgium
4. The Children's Memorial Health Institute; Warszawa Poland
5. Medical University Varna; Varna Bulgaria
6. Dr von Hauner Children's Hospital; University of Munich Medical Centre; Munich Germany
7. Faculty of Health Science; University of Zaragoza; Zaragoza Spain