RUNX1 and neoplasm: To avoid the complexity of cell type heterogeneity within a tumor, we FACS (fluorescence-activated cell sorting)–sorted enhanced green fluorescent protein–positive (EGFP+) SC cells from DRG/tumor of Runx1fl/fl;Runx3fl/fl;Nf1fl/fl;DhhCre and Nf1fl/fl;DhhCre mice, where EGFP serves as a reporter in the SC lineage and represents Runx1−/−;Runx3−/−;Nf1−/− and Runx1WT;Runx3WT;Nf1−/− SCs, respectively.