1. Child Development Center, University Children's Hospital Zurich, Steinwiesstrasse 75, Zurich, Switzerland
2. Department of Psychosomatics and Psychiatry, University Children's Hospital Zurich, Steinwiesstrasse 75, Zurich, Switzerland
3. Department of Cardiology, University Hospital Zurich, Rämistrasse 100, Zurich, Switzerland
4. Children's Research Center, University Children's Hospital Zurich, Steinwiesstrasse 75, Zurich, Switzerland
5. Division of Child and Adolescent Health Psychology, Department of Psychology, University of Zurich, Binzmühlestrasse 14, Zurich, Switzerland
6. Division of Pediatric Cardiology, Pediatric Heart Center, University Children's Hospital Zurich, Steinwiesstrasse 75, Zurich, Switzerland