[1] Robert Koch-Institut,Research Unit Psychosocial Health
[2] University Medical Center Hamburg — Eppendorf,Department of Psychosomatics in Children and Adolescents, Center of Gynaecology, Obstetrics and Paediatrics
[3] Bielefeld University,School of Public Health, WHO Collaborating Center for Child and Adolescent Health Promotion
[4] University Medical Center Hamburg — Eppendorf,Department of Medical Psychology, Center of Psychosocial Medicine