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.

对发现携带有突变的体选取5与BRCA1基因连锁的标（D17S855、D17S1322、D17S1323、D17S1326D17S1327）行单倍型分析。