1. Pediatric Skin Center Dermatology Department University Children's Hospital Zurich Zurich Switzerland
2. Center for Dermatology & Allergology Cantonal Hospital of Lucerne Lucerne Switzerland
3. Sihlmed center for integrative medicine Zurich Switzerland
4. Private pediatric practice Wettingen Switzerland
5. Department of Dermatology Medical Center University of Freiburg Freiburg Germany