1. Department of Dermatology; University Hospital of Essen; Essen Germany
2. Department of Dermatology; University Hospital of Basel; Basel Switzerland
3. Department of Surgery and Translational Medicine; University of Florence; Florence Italy
4. Laboratoire de Pathologie; University Paris Diderot; Sorbonne Paris Cité Paris France
5. Department of Internal Medicine III; University Hospital Regensburg; Regensburg Germany
6. SCT Outpatient Clinic; ST. Anna Children's Hospital; Vienna Austria
7. Department of Internal Medicine I; BMT; Medical University of Vienna; Vienna Austria
8. Department of Hematology, Oncology, and Pneumology; University Medical Center Mainz; Mainz Germany
9. Department of Dermatology; University Hospital Leipzig; Leipzig Germany