*Department of Pathology, Emory University School of Medicine, Atlanta, GA

†Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH

‡Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN

§Department of Pathology, University of Michigan, Ann Arbor, MI

∥Department of Pathology, Northwestern University Feinberg School of Medicine

¶Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, IL

#Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO

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.

Correspondence: Yue Xue, MD, PhD, Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 (e-mail: [email protected]).