1. Department of Pathology The Johns Hopkins University School of Medicine Baltimore MD USA
2. Department of Oncology The Johns Hopkins University School of Medicine Baltimore MD USA
3. Department of Pathology, Memorial Sloan‐Kettering Cancer Center New York NY USA
4. Department of Pathology University of Texas Southwestern Medical Center Dallas TX USA
5. Department of Otolaryngology The Johns Hopkins University School of Medicine Baltimore MD USA
6. Department of Pathology and Laboratory Medicine University of Miami Miller School of Medicine Miami FL USA