The study group consisted of 66 Polish families with cancer who have at least three related females affected with breast or ovarian cancer and who had cancer diagnosed , in at least one of the three affected females , at age < 50 years .
O O O O O O O O O B-DiseaseOrPhenotypicFeature O O O O O O O O O B-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature O O O B-DiseaseOrPhenotypicFeature O O O O O O O O O O O O O O O O O O