EGFR and neoplasm: Following established protocols [19, 21], we dichotomized the samples into <10% positivity (n=199) and ≥10% positivity (n=289) (Figure 2), but found no significant association of dichotomized EGFR staining with tumor histology (high-grade serous versus nonserous), stage, grade (Table 4), or patient survival (Table 5).