1. Department of Dermatology University Hospital DüsseldorfHeinrich‐Heine‐University of Düsseldorf Düsseldorf Germany
2. Chair for Translational Wound Research Centre for Biomedical Education and Research Witten/Herdecke University Witten Germany
3. Department of Vascular and Endovascular Surgery University Hospital DüsseldorfHeinrich‐Heine‐University of Düsseldorf Düsseldorf Germany
4. Department of Vascular Medicine University Heart CenterUniversity Medical Center Hamburg‐Eppendorf Hamburg Germany