Sensitivity analysis of weight reduction results of an observational cohort study in overweight and obese children and adolescents in Germany: the EvAKuJ Study oleh Thomas Böhler, Cornelia Goldapp, Reinhard Mann, Thomas Reinehr, Monika Bullinger, Reinhard Holl, Ulrike Hoffmeister, Andreas van Egmond-Fröhlich, Ulrike Ravens-Sieberer, Nora Wille, Joachim Westenhöfer, Jürgen Bengel