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Abstract Background. Germline mutations in the BRCA1 gene, on chromosome 17q21, confer susceptibility to hereditary breast and ovarian cancer. It remains uncertain, however, whether somatic mutations in BRCA1 play a role in sporadic ovarian carcinogenesis. Methods. Samples of tumor and normal (peripheral blood) DNA were collected from 19 patients with sporadic (that is, no known family history) ovarian...
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