1. From the Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania (Drs Roy, LaFramboise, Nikiforov, Nikiforova, and Pantanowitz); the Department of Pathology, MD Anderson Cancer Center, Houston, Texas (Dr Routbort); the Department of Pathology and Immunology, Washington University School of Medicine, St Louis, Missouri (Drs Pfeifer and Nagarajan); PierianDx, St L