Design and results of the pretest of the IDEFICS study
Marc Suling, A. Hebestreit, J. Peplies, K. Bammann, Annunziata Nappo, Gabriele Eiben, J. M. Fernandez-Alvira, Vera Verbestel, K. Kovacs, Yannis Pitsiladis, Toomas Veidebaum, Charalampos Hadjigeorgiou, K. Knof, W. Ahrens