In unclassified ovarian cancer patients who undertook germline BRCA1 and 2 test, 19% (44/235) were carriers of germline mutations, and somatic mutation test was done on 28 specimens, 42.9% (9/21) and 28.6% (2/7) were found to be BRCA1 and 2 positives, respectively (42). Here, BRCA1 is linked to ovarian cancer.