1. Section for Translational Psychobiology in Child and Adolescent Psychiatry, Department of Child and Adolescent Psychiatry, Centre for Psychosocial Medicine, University of Heidelberg, Heidelberg, Germany
2. University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern 60, Switzerland
3. Department of Psychology, University of Minnesota, College of Liberal Arts, Minneapolis, MN, USA
4. Department of Psychiatry, University of Minnesota, Medical School, Minneapolis, MN, USA