text_1: BRCA 1 mutation carriers' risk of breast and ovarian cancer depends on where the mutation is located.
text_2: We also identified an ovarian cancer cluster region (OCCR) from c.1380 to c.4062 (approximately exon 11) with RHR = 0.62 (95% CI, 0.56-0.70; P = 9 × 10(-17)).