*Department of Pathology, Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH

†Department of Head and Neck Surgery West Cancer Center, Germantown

‡Department of Pathology, Pathology Specialists of Memphis, Methodist University Hospital Memphis, TN

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.