Børresen A L, Heiberg A, Møller P, Berg K
Clin Genet. 1987 Sep;32(3):187-91. doi: 10.1111/j.1399-0004.1987.tb03352.x.
DNA analysis of Xp21 markers in a family with two brothers affected with Duchenne muscular dystrophy (DMD) revealed that the mutation most likely had occurred in a grandpaternal sperm. There is therefore a low risk that the maternal aunts and their daughters are carriers of the DMD gene.
对一个有两名患杜氏肌营养不良症（DMD）兄弟的家庭进行的Xp21标记的DNA分析显示，该突变很可能发生在祖父的精子中。因此，母亲的姐妹及其女儿携带DMD基因的风险较低。
