BACKGROUND:Recently, there are two main methods for the assay of Duchenne type muscular dystrophy(DMD):Southern blotting and polymerase chain reaction(PCR). While several limitations are found in the practice.

• 背景:目前对Duchenne型肌营养不良(DMD)基因缺失的检测主要是Southern印迹或聚合酶链反应(PCR)的方法,在实际应用中有一定的局限性。