1. Division of Plastic and Reconstructive Surgery Department of Surgery University Children's Hospital Zurich Zurich Switzerland
2. Department of Psychosomatics and Psychiatry and Children's Research Center University Children's Hospital Zurich Zurich Switzerland
3. Division of Child and Adolescent Health Psychology Department of Psychology University of Zurich Zurich Switzerland
4. Division of Pediatric Dermatology Department of Surgery University Children's Hospital Zurich Zurich Switzerland