1 Institute of Pathology, School of Medicine, Technical University of Munich (TUM), 81675, Munich, Germany.
2 University of Heidelberg, Institute of Pathology, Im Neuenheimer Feld 224, 69120, Heidelberg, Germany.
3 Section Experimental and Translational Head and Neck Oncology, Department of Otolaryngology, Head and Neck Surgery, University Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
4 Research Group Molecular Mechanisms of Head and Neck Tumors, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany.