*Department of Pathology, Ghent University and Ghent University Hospital
†CRIG, Cancer Research Institute Ghent Ghent University and Ghent University Hospital, Ghent, Belgium
‡Dermatopathology Bodensee Friedrichshafen, Germany
§Department of Pathology Diakonessenhuis Utrecht, Utrecht
∥Department of Pathology, Radboud University Medical Center Nijmegen Nijmegen, The Netherlands
Conflicts of Interest and Source of Funding: The authors have disclosed that they have no significant relationships with, or financial interest in, any commercial companies pertaining to this article.