1 Department of Pathology and Molecular Pathology, University and University Hospital Zurich, Zurich, Switzerland. annabettina.sobottka-brillout@usz.ch.
2 Department of Pathology and Molecular Pathology, University and University Hospital Zurich, Zurich, Switzerland.
3 Department of Dermatology, University and University Hospital Zurich, Zurich, Switzerland.
4 Department of Pathology and Molecular Pathology, University and University Hospital Zurich, Zurich, Switzerland. viktor.koelzer@usz.ch.