1. Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy; University Clinics RWTH Aachen; Aachen Germany
2. Institute of Medical Biometry and Statistics, Christian Albrecht-University Kiel; Kiel Germany
3. Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy; University Hospital Wuerzburg; Wuerzburg Germany
4. Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy; Charité University Hospital Berlin; Berlin Germany
5. Child Neuropsychology Section, Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy; University Clinics RWTH Aachen; Aachen Germany