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(a) Number and distribution of breast cancer cases genotyped for the BRCA1 mutation c.4183C>T in the North Tyrol. (b) Number and distribution of ovarian cancer cases genotyped for the BRCA1 mutation c.4183C>T in the North Tyrol. Grey outline: the Austrian federal state of the Tyrol; red outline: the Lower Inn Valley region (districts Schwaz and Kufstein). Filled parts of circles: number of cases without the mutation. Hatched parts of circles: number of mutation carriers.
