[1] Univ Marburg, Dept Child & Adolescent Psychol, Marburg, Germany
[2] Univ Bern, Univ Hosp Child & Adolescent Psychiat, Bern, Switzerland
[3] Univ Med Ctr Ulm, Dept Pediat & Adolescent Med, Div Pediat Endocrinol & Diabet, Ulm, Germany
[4] German Canc Res Ctr, Div Clin Epidemiol & Aging Res, Heidelberg, Germany
[5] Univ Duisburg Essen, Dept Child & Adolescent Psychiat & Psychotherapy, Essen, Germany