30 Friebel Friebel TM TM Domchek Domchek SM SM Rebbeck Rebbeck TR TR Modifiers of cancer risk in BRCA1 and BRCA2 mutation carriers: systematic review and meta-analysis [published correction appears in Modifiers of cancer risk in BRCA1 and BRCA2 mutation carriers: systematic review and meta-analysis [published correction appears in J Natl Cancer Inst J Natl Cancer Inst 2014 2014 08 08 106 106 8 8 dju235 dju235 dju235 dju235 10.1093/jnci/dju235 10.1093/jnci/dju235 J Natl Cancer Inst. This evidence concerns the gene BRCA2 and cancer.