1. Division of Experimental Allergy and Immunodermatology, Faculty of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
2. Division of Anatomy, Faculty of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
3. Department of Experimental Pain Research, MCTN, Medical Faculty Mannheim, University of Heidelberg, 68167 Mannheim, Germany
4. Research Center for Neurosensory Science, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
5. University Clinic of Dermatology and Allergy, Klinikum Oldenburg, University Oldenburg, 26133 Oldenburg, Germany