1. Department of Dermatology University Hospital Münster Münster Germany
2. Institute of Immunology University of Oldenburg Oldenburg Germany
3. Center for Chronic Pruritus University Hospital Münster Münster Germany
4. Department of Pediatric Rheumatology and Immunology University Children’s Hospital Münster Münster Germany
5. Hautarztpraxis am Buddenturm Münster Germany