1 Affiliations of authors: Department of Biostatistics (BLF, DK) and Department of Pathology and Laboratory Medicine (AKG), University of Kansas Medical Center, and University of Kansas Cancer Center (BLF, DK, AKG), Kansas City, KS. bfridley@kumc.edu.
2 Affiliations of authors: Department of Biostatistics (BLF, DK) and Department of Pathology and Laboratory Medicine (AKG), University of Kansas Medical Center, and University of Kansas Cancer Center (BLF, DK, AKG), Kansas City, KS.