Authors' Affiliations: Departments of 1Medical Oncology, 2Health Sciences Research, 3Medicine, 4Laboratory Medicine and Pathology, and 5Surgery, Mayo Clinic, Rochester, Minnesota; 6Department of Biochemistry/Molecular Biology, Mayo Clinic, Jacksonville, Florida; 7University of Virginia Health System, Charlottesville, Virginia; and 8Washington University, St. Louis, Missouri (At 2014-02-01)