Eur. j. nutr. Eur. j. nutr. Clinical and physical characteristics of thinness in adolescents: the Helena study Vanhelst Jérémy Béghin Laurent Drumez Elodie Castillo Manuel J. Kafatos Anthony Molnar Dénes Wildhalm Kurt Kersting Mathilde Gonzales-Gross Marcela Breidenassel Christina Censi Laura De Henauw Stefaan Moreno Luis A. Universidad de Zaragoza Gottrand Frédéric 2023 research-article