Allelotype analysis was done at five short tandem repeat markers (D17S855, D17S1322, D17S1323, D17S1326, and D17S1327) in or adjacent to BRCA1 on the recurrent mutation carriers.

对发现携带有相同突变的个体选取5个与BRCA1基因连锁的标记（D17S855、D17S1322、D17S1323、D17S1326和D17S1327）进行单倍型分析。